home *** CD-ROM | disk | FTP | other *** search
- Path: senator-bedfellow.mit.edu!dreaderd!not-for-mail
- Message-ID: <misc-kids/vaccinations/part1_1082200966@rtfm.mit.edu>
- Supersedes: <misc-kids/vaccinations/part1_1079601013@rtfm.mit.edu>
- Expires: 31 May 2004 11:22:46 GMT
- X-Last-Updated: 1999/10/23
- Organization: none
- From: lynng@alsirat.com
- Newsgroups: misc.kids.info,misc.answers,news.answers
- Subject: misc.kids FAQ on Childhood Vaccinations, Part 1/4
- Followup-To: misc.kids.health
- Approved: news-answers-request@MIT.EDU, kids-info-request@ai.mit.edu
- Reply-To: lynng@alsirat.com
- Originator: faqserv@penguin-lust.MIT.EDU
- Date: 17 Apr 2004 11:24:14 GMT
- Lines: 1273
- NNTP-Posting-Host: penguin-lust.mit.edu
- X-Trace: 1082201054 senator-bedfellow.mit.edu 574 18.181.0.29
- Xref: senator-bedfellow.mit.edu misc.kids.info:6227 misc.answers:17175 news.answers:269668
-
- Archive-name: misc-kids/vaccinations/part1
- Posting-Frequency: monthly
- Last-Modified: October 23, 1999
-
- =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
- =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
- =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
- Collection maintained by: Lynn Gazis-Sax (lynng@alsirat.com)=20
-
- To contribute to this collection, please send e-mail to the address given a=
- bove, and ask me to add your comments to the FAQ
- file on vaccination. Please try to be as concise as possible, as these FAQ =
- files tend to be quite long as it is. And, unless
- otherwise requested, your name and e-mail address will remain in the file, =
- so that interested readers may follow-up directly for
- more information/discussion.=20
-
- Copyright 1994-1999, Lynn Gazis-Sax. All rights reserved. Use and copying o=
- f this information are permitted as long as (1)
- no fees or compensation are charged for use, copies or access to this infor=
- mation, and (2) this copyright notice is included
- intact.=20
-
- For a list of other FAQ topics, ftp to the pub/usenet/misc.kids directory o=
- f rtfm.mit.edu, look for the FAQ File Index posted to
- misc.kids weekly, or tune in to misc.kids.info.
- =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
- =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
- =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
- [NOTE: this is information collected from many sources and while I have str=
- ived to be accurate and complete, I cannot
- guarantee that I have succeeded. This is not medical advice. For that, see =
- your doctor or other health care provider.]=20
-
- [This version is updated to reflect the approval of the chicken pox and hep=
- atitis A vaccines by the FDA, the approval of an
- acellular pertussis vaccine for all shots, the approval of IPV for all poli=
- o shots, the rise and fall of the new rotavirus vaccine,
- new information about adverse events, and new information about vaccine res=
- earch. ]
- =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
- =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
- =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
- =3D=3D=3D=3D
-
- Contents=20
-
- Section 1. Introduction and General Information
- Q1.1 What is vaccination?
- Q1.2 What are active and passive vaccination?
- Q1.3 What is herd immunity?
- Q1.4 How effective is vaccination at producing immunity?
- Q1.5 What are some of the risks of vaccination?
- Q1.6 What are some contraindications to vaccinations?
- Q1.7 How common are the diseases vaccinated against?
- Q1.8 What percentage of children are vaccinated?
- Q1.9 What are some sources of further information about vaccinations?
-
- Section 2. The recommended vaccination schedule and official organizations
- Q2.1 What is the recommended vaccination schedule in the US for infants?
- Q2.2 What is the recommended vaccination schedule in the US for older child=
- ren who were not vaccinated in infancy?
- Q2.3 What is the recommended vaccination schedule in the US for adults?
- Q2.4 Who determines this schedule?
- Q2.5 What other US government organizations are concerned with vaccinations=
- ?
- Q2.5.1 What is the National Vaccine Injury Compensation Program (VICP)?
- Q2.5.2 What vaccines are covered?
- Q2.5.3 Who may file a claim?
- Q2.5.4 Who can I contact to get more information about the Program? Q2.5.5 =
- What is VAERS?
- Q2.5.6 Who can report to VAERS?
- Q2.5.7 What events should be reported to VAERS?
- Q2.5.8 Are all events reported to VAERS caused by vaccinations?
- Q2.5.9 How can I get rapid information on VAERS, such as how to file a repo=
- rt?
- Q2.5.10 Have there been any comprehensive scientific studies on adverse eve=
- nts following immunization?
- Q2.5.11 Are VAERS data available to the public?
- Q2.6 What vaccination schedules are used in other countries?
- Q2.7 What international bodies are concerned with vaccinations?
-
- Section 3. Specific vaccines
- Section 3a. DTP (diptheria, tetanus, and pertussis) and DT
- Q3a.1 What is diptheria, and what are the risks of the disease?
- Q3a.2 How common was diptheria before routine vaccination, and how common i=
- s it now?
- Q3a.3 How effective is the diptheria vaccine?
- Q3a.4 How long does the diptheria vaccine last?
- Q3a.5 What is pertussis, and what are the risks of the disease?
- Q3a.6 How common was pertussis before routine vaccination, and how common i=
- s it now?
- Q3a.7 How effective is the whole cell pertussis vaccine?
- Q3a.8 How long does the pertussis vaccine last?
- Q3a.9 What is tetanus, and what are the risks of the disease?
- Q3a.10 How common was tetanus before routine vaccination, and how common is=
- it now?
- Q3a.11 How effective is the tetanus vaccine?
- Q3a.12 How long does the tetanus vaccine last?
- Q3a.13 What are some of the risks of the DTP vaccine?
- Q3a.14 Did SIDS disappear in Japan after the Japanese changed their pertuss=
- is vaccination policy in 1975?
- Q3a.15 When is the DTP vaccine contraindicated?
- Q3a.16 What are the advantages and disadvantages of the new acellular pertu=
- ssis vaccine?
- Q3a.17 What are some of the risks of the DT (diptheria and tetanus) vaccine=
- ?
- Q3a.18 When is the DT vaccine contraindicated?
- Q3a.19 Under what circumstances is tetanus toxoid given to pregnant women?=
- =20
-
- Section 3b. Polio
- Q3b.1 What is polio, and what are the risks of the disease?
- Q3b.2 How common was polio before routine vaccination, and how common is it=
- now?
- Q3b.3 How effective is the polio vaccine?
- Q3b.4 How long does the polio vaccine last?
- Q3b.5 What is the difference between oral polio vaccine (OPV) and inactivat=
- ed polio vaccine (IPV)?
- Q3b.6 I've heard that it is possible to contract polio from handling the di=
- apers of recently immunized infants. How long after
- receiving the vaccine does the child's excrement continue to contain the vi=
- rus?
- Q3b.7 What are some other risks of the polio vaccine?
- Q3b.8 When is the polio vaccine contraindicated?
- Q3b.9 Isn't it true that wild polio has been eliminated in the US?
- Q3b.10 Why are we still vaccinating for polio, then?
-
- Section 3c. MMR (measles, mumps, and rubella)
- Q3c.1 What is measles, and what are the risks of the disease?
- Q3c.2 How common was measles before routine vaccination, and how common is =
- it now?
- Q3c.3 How effective is the measles vaccine?
- Q3c.4 How long does the measles vaccine last?
- Q3c.5 What are some of the risks of the measles vaccine?
- Q3c.6 What is mumps, and what are the risks of the disease?
- Q3c.7 How common was mumps before routine vaccination, and how common is it=
- now?
- Q3c.8 How effective is the mumps vaccine?
- Q3c.9 How long does the mumps vaccine last?
- Q3c.10 What are some of the risks of the mumps vaccine?
- Q3c.11 What is rubella, and what are the risks of the disease?
- Q3c.12 How common was rubella before routine vaccination, and how common is=
- it now?
- Q3c.13 How effective is the rubella vaccine?
- Q3c.14 How long does the rubella vaccine last?
- Q3c.15 What are the pros and cons of vaccinating all infants for rubella ve=
- rsus vaccinating females only at puberty?
- Q3c.16 What are some of the risks of the rubella vaccine?
- Q3c.17 When is the MMR vaccine contraindicated?
-
- Section 3d. HiB (Hemophilus influenze B)
- Q3d.1 What is hemophilus influenze B, and what are the risks of the disease=
- ?=20
- Q3d.2 How common was HiB before routine vaccination, and how common is it n=
- ow?
- Q3d.3 How effective is the HiB vaccine?
- Q3d.4 How long does the HiB vaccine last?
- Q3d.5 What are some of the risks of the HiB vaccine?
- Q3d.6 When is the HiB vaccine contraindicated?
- Q3d.7 What about rifampin prophylaxis?
-
- Section 3e. Hepatitis B gamma globulin and hepatitis B vaccine
- Q3e.1 What is hepatitis B, and what are the risks of the disease?
- Q3e.2 How common is hepatitis B?
- Q3e.3 What is hepatitis B gamma globulin, and when is it given?
- Q3e.4 How long does the immunity provided by hepatitis B gamma globulin las=
- t?
- Q3e.5 What are the risks and contraindications of hepatitis B gamma globuli=
- n?=20
- Q3e.6 How effective is the hepatitis B vaccine?
- Q3e.7 How long does the hepatitis B vaccine last?
- Q3e.8 What are some of the risks of the hepatitis B vaccine?
- Q3e.9 When is the hepatitis B vaccine contraindicated?
- Q3e.10 Why did the ACIP and AAP change their recommendation about the hepat=
- itis B vaccine?
- Q3e.11 Does vaccination for hepatitis B affect one's ability to donate bloo=
- d?
- Q3e.12 Do people who have showed up positive on the blood banks' tests for =
- hepatitis B exposure still need to be
- vaccinated?
- Q3e.13 I will be travelling to an area where hepatitis B shots are recommen=
- ded, but I have less than six months before I leave.
- Is there an accelerated schedule for hepatitis B vaccination?
-
- Section 3f. Influenza
- Q3f.1 What is influenza, and what are the risks of the disease?
- Q3f.2 How common is influenza?
- Q3f.3 How effective is the influenza vaccine?
- Q3f.4 How long does the influenza vaccine last?
- Q3f.5 What are some of the risks of the influenza vaccine?
- Q3f.6 When is the influenza vaccine recommended?
- Q3f.7 When is the influenza vaccine contraindicated?
- Q3f.8 Is it OK to be vaccinated for influenza during pregnancy?
-
- Section 3g. Pneumococcal vaccine
- Q3g.1 What is pneumococcal disease, and what are the risks of the disease?=
- =20
- Q3g.2 How common is pneumococcal disease?
- Q3g.3 How effective is the pneumococcal vaccine?
- Q3g.4 How long does the pneumococcal vaccine last?
- Q3g.5 What are some of the risks of the pneumococcal vaccine?
- Q3g.6 When is the pneumococcal vaccine recommended?
- Q3g.7 When is the pneumococcal vaccine contraindicated?
-
- Section 3h. Meningococcal vaccine
- Q3h.1 What is meningococcal disease, and what are the risks of the disease?=
- =20
- Q3h.2 How common is meningococcal disease?
- Q3h.3 How effective is the meningococcal vaccine?
- Q3h.4 How long does the meningococcal vaccine last?
- Q3h.5 What are some of the risks of the meningococcal vaccine?
- Q3h.6 When is the meningococcal vaccine recommended?
- Q3h.7 When is the meningococcal vaccine contraindicated?
-
- Section 3i. Varicella (chicken pox) vaccine
- Q3i.1 What is chicken pox, and what are the risks of the disease?
- Q3i.2 How common is chicken pox?
- Q3i.3 What is Herpes Zoster?
- Q3i.4 What is the current recommendation for the chicken pox vaccine be par=
- t for children?
- Q3i.5 What is the current recommendation for adults?
- Q3i.6 How effective is the chicken pox vaccine?
- Q3i.7 How long does the chicken pox vaccine last?
- Q3i.8 What reactions have been reported following the chickenpox vaccine?
- Q3i.9 Will a second dose be necessary in younger children?
- Q3i.10 For which groups is the chicken pox vaccine especially recommended?
- Q3i.11 When is the chicken pox vaccine contraindicated?
- Q3i.12 Is there a gamma globulin for chicken pox?
-
- Section 3j. BCG (tuberculosis) vaccine
- Q3j.1 What is tuberculosis, and what are the risks of the disease?
- Q3j.2 How common is tuberculosis?
- Q3j.3 How effective is the BCG vaccine?
- Q3j.4 How long does the BCG vaccine last?
- Q3j.5 What are some of the risks of the BCG vaccine?
- Q3j.6 When is the BCG vaccine recommended?
- Q3j.7 When is the BCG vaccine contraindicated?
- Q3j.8 What are some other methods of controlling tuberculosis?
-
- Section 3k. Hepatitis A vaccine
- Q3k.1 What is hepatitis A and what are the risks of the disease?
- Q3k.2 How common is hepatitis A?
- Q3k.3 Who is at risk for acquiring hepatitis A?
- Q3k.4 Is there a vaccine to protect against hepatitis A?
- Q3k.5 How is it to be administered?
- Q3k.6 How effective is the vaccine?
- Q3k.7 How long does immunity last?
- Q3k.8 What are some of the risks of the vaccine?
- Q3k.9 When is hepatitis A vaccine contraindicated?
- Q3k.10 What groups at risk may be included in a recommendation to receive h=
- epatitis A vaccination?
- Q3k.11 Is it possible that hepatitis A vaccine (like hepatitis B vaccine) m=
- ight eventually be recommended for routine
- administration to children and adults?
-
- Section 3l. Rotavirus vaccine
- Q3l.1 What is rotavirus, and what are the risks of the disease?
- Q3l.2 How common is rotavirus?
- Q3l.3 What is the current status of the rotavirus vaccine?
- Q3l.4 How effective is the rotavirus vaccine?
- Q3l.5 Is the rotavirus vaccine effective for breastfeeding infants?
- Q3l.6 How long does the rotavirus vaccine last?
- Q3l.7 What is intussusception?
- Q3l.8 What is the relationship between the rotavirus vaccine and intussusce=
- ption?
- Q3l.9 Why was a connection between the rotavirus vaccine and intussusceptio=
- n not observed prior to FDA approval of the
- vaccine?
- Q3l.10 What other reactions have been reported following the rotavirus vacc=
- ine?
- Q3l.11 Can the rotavirus vaccine be effectively used in developing countrie=
- s?
- Q3l.12 When is the rotavirus vaccine contraindicated?=20
-
- Section 3m. Other vaccines which are available
- Q3m.1 What other vaccines are available and when are they given?
-
- Section 3n. Vaccines under development
- Q3n.1 What vaccines are currently under development?
- Q3n.2 What other research is being done to improve vaccines?
-
- Section 4. References
-
- Section 5. Stories of Parents
-
- =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
- =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
- =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
- =3D=3D=3D=3D
-
- Section 1. Introduction and General Information
- [This section last updated on September 25, 1999.]=20
-
- Q1.1 What is vaccination?=20
-
- The basic principle of vaccination is that a disease-causing agent is given=
- to a person in a killed or weakened form (or in the
- form of proteins genetically engineered to look like a disease-causing agen=
- t), in order to stimulate the production of antibodies
- to fight off the disease.=20
-
- Q1.2 What are active and passive vaccination?=20
-
- Active immunization involves trying to stimulate antibodies by giving a per=
- son a killed or weakened form of a disease-causing
- agent. Passive immunization involves giving a person antibodies from someon=
- e who was infected with the disease (these are
- called gamma globulins). Passive immunization doesn't last very long, but c=
- an be useful for someone who expects to be
- exposed to a disease (e.g. someone travelling to another country who takes =
- hepatitis A gamma globulin right before leaving), or
- to someone who has just been exposed to a disease. Most of the vaccinations=
- discussed in this FAQ fall under the active
- vaccination category.=20
-
- Q1.3 What is herd immunity?=20
-
- If a large enough percentage of a population is immune to a disease, their =
- immunity protects the rest of the "herd."=20
-
- Some discussion of this concept from misc.kids follows:=20
-
- *************************************************************************
- From: pburch@cmb.bcm.tmc.edu (Paula Burch)
-
- |> >Paula Burch (pburch@cmb.bcm.tmc.edu) wrote:
- |> >: If one child remains unvaccinated, but all other children are
- |> >: vaccinated, the one child who does not get vaccinated is pretty safe
- |> >: from getting the disease. If many children remain unvaccinated,
- |> >: epidemics occur, and children die needlessly.
-
- |> dolson@ucsd.edu (Mark Dolson) writes:=20
- |> >This is exactly what occured with measles in the 80's, BTW. Fewer
- |> >vaccinated, and the incidence skyrocketed, with resulting complications
- |> >of eye problems, etc, and even some deaths. I agree that people who
- |> >let their children remain unvaccinated are riding on the backs of=20
- |> >everyone that does vaccinate, and I resent it.
-
- mblum@world.std.com (Cerebus) writes:
- |> To be fair, most of the major outbreaks (as well as most of the
- |> serious complications) were and are on college campuses, and occurred *n=
- ot*
- |> because of failure to vaccinate, but because the vaccine that was given
- |> to kids between '69-'76 turned out not to give total immunity. Many kid=
- s
- |> who were vaccinated were victims of measles, before people became consci=
- ous
- |> that it was necessary for many teens and young adults to be re-vaccinate=
- d.
- |>
- |> I had measles my first year in college, after vaccination at the appropr=
- iate
- |> age. After that outbreak my college began requiring re-vaccination. Bu=
- t it
- |> is not technically correct to blame the measles outbreak on the failure =
- of
- |> parents to vaccinate.
-
- It's true that that's what happended in that case, but it's not true for
- other cases, in which failure to vaccinate has been a major factor:
-
- "The nation [U.S.] has experienced a marked increase in measles cases=20
- during 1989 and 1990. Almost one half of all cases have occurred in
- *unvaccinated* preschool children." (JAMA. 1991 Sep 18. 266(11). =20
- P 1547-52.)
-
- "Beginning in October, 1990, a large measles outbreak involving
- predominantly *unvaccinated* preschool age children occurred in
- Philadelphia. By June, 1991, 938 measles cases had been reported to
- the Philadelphia Health Department. In addition to these cases, 486
- cases and 6 measles-associated *deaths* occurred between November 4,
- 1990, and March 24, 1991, among members of 2 Philadelphia church
- groups that do not accept vaccination." (Pediatr-Infect-Dis-J. 1993 Apr=
- .=20
- 12(4). P 288-92.)
-
- "In 1989 and 1990 the United States experienced a measles epidemic with=
- =20
- more than 18,000 and 27,000 reported cases. Nearly half of all persons
- with measles were *unvaccinated* preschool children under 5 years of age=
- ."=20
- (Am-J-Public-Health. 1993 Jun. 83(6). P 862-7.)
-
- Measles is bad, but I'm more concerned myself about pertussis (whooping cou=
- gh):
-
- "From 1980 through 1989, 27,826 cases of pertussis were reported to
- the Centers for Disease Control....Infants less than 2 months of age=20
- had the highest reported rates of pertussis-associated hospitalization=
- =20
- (82%), pneumonia (25%), seizures (4%), encephalopathy (1%), and *death*=
- =20
- (1%)." (Clin-Infect-Dis. 1992 Mar. 14(3). P 708-19.) [Many of these=
- =20
- infants would not have caught the disease if enough older children were=
- =20
- appropriately vaccinated.]
-
- "Two large *epidemics* of pertussis occurred in Britain during 1977-79
- and 1981-83." (Commun-Dis-Rep-CDR-Rev. 1992 Dec 4. 2(13). P R155-6.)
-
- This explains the herd immunity concept rather well:
-
- "The epidemiology of whooping cough [pertussis] in Denmark is described =
- =20
- on the basis of the notified cases of the disease. The frequency of
- whooping cough has decreased to approximately one sixteenth of the
- previous level in children following the introduction of vaccination
- for whooping cough in 1961....deaths from whooping cough still
- occurred in the eighties, all of these among *unvaccinated* infants.
- The risk of whooping cough in an *unvaccinated* child is approximately
- one sixth of the risk prior to introduction of vaccination. In a
- vaccinated child, the risk, as judged from the notified cases, is one
- twentieth of the risk during the time prior to introduction of
- vaccination. In all age groups "herd immunity" is considered to have
- contributed considerably to the reduced incidence. The incidence in
- Denmark is, however, high compared with the incidence in some other
- industrialized countries. A vaccination programme with more numerous
- whooping cough vaccinations...may be recommended on the basis of the=20
- strategy aimed at keeping the incidence of whooping cough, and thus the=
- =20
- risk of exposure, as low as possible." (Ugeskr-Laeger. 1990 Feb 26. =20
- 152(9). P 597-604.)
-
- Paula Burch
- pburch@bcm.tmc.edu
- not speaking for Baylor College of Medicine
- *************************************************************************
-
- Q1.4 How effective is vaccination at producing immunity?=20
-
- Vaccination does not always work. For one thing, vaccines can lose effectiv=
- eness when they aren't stored properly. And even
- if they are stored effectively, they will fail to stimulate immunity a cert=
- ain percentage of the time. The effectiveness of vaccines
- varies, depending on the vaccine. Effectiveness can also vary depending on =
- the age, sex, and health of the recipient. Sometimes
- different strains of a vaccine can have different effectiveness.=20
-
- Vaccine effectiveness is measured in two ways. First, antibody levels are m=
- easured after a vaccine is given. Second, people are
- vaccinated and then followed to see whether they get the disease when they =
- are exposed to it. Estimates of effectiveness can
- vary in some cases depending on the level of antibodies which is considered=
- as passing, and the criteria for measuring whether
- someone has the disease (for instance, pertussis vaccine is more effective =
- at preventing full-blown pertussis than at preventing a
- mild cough). Also, some sources give estimates of field effectiveness which=
- take into account difficulties in storing vaccines in
- some areas; these estimates tend to be lower than estimates based on studie=
- s of vaccination in the US or other developed
- countries.=20
-
- Estimates of effectiveness of individual vaccines are given in the section =
- for each vaccine (and, where I have found variations in
- estimates of effectiveness, I have noted that as well).=20
-
- *************************************************************************
- From=20J Thompson (jet14@columbia.edu):=20
-
- In addition to all of the factors you mentioned which determine the variabi=
- lity of response to a vaccine, another very important
- factor is the genetic inheritance of every individual. To give an example I=
- feel sure of, I'll use the Hepatitis B vaccine. A certain
- small percentage of the population has no response at all to the recombinan=
- t Hep B vaccine. This occurs because these people
- lack the particular forms of major histocompatibility complex (MHC) protein=
- s which are necessary to "present" the _single_
- protein in the vaccine to the immune system. These people can make a good r=
- esponse to the whole virus, but they have a
- problem with the protein in the vaccine.=20
-
- This also highlights the need for "herd immunity," since people who cannot =
- make an immune response to a vaccine component
- will _never_ have a good response to the vaccine, regardless of how often i=
- t is given.
- *************************************************************************
-
- Q1.5 What are some of the risks of vaccination?=20
-
- Again, these risks vary with the vaccine. However, there are some risks whi=
- ch are common to several vaccines. People may be
- allergic to a component of the vaccine, such as eggs or neomycin. Occasiona=
- lly, these allergies can lead to anaphylactic shock
- (doctors keep epinephrine on hand when giving vaccinations to guard against=
- this risk). Vaccines can produce the same
- symptoms as the disease (in a milder form, and with less frequent incidence=
- of the risks associated with the disease). Live
- vaccines in particular can be risky for people with weakened immune systems=
- , who have less ability to resist even the
- weakened form of the disease. Common minor adverse reactions include sorene=
- ss or swelling at the injection site and fever.
- Because of the latter, vaccinations are often postponed if the recipient al=
- ready has a fever.=20
-
- Another risk is the risk that the vaccination will wear off, and the recipi=
- ent will get the disease later. Depending on the illness,
- the disease could be either less or more harmful to adults. While this risk=
- can be dealt with by giving boosters, it is worth
- bearing in mind in setting vaccination policies and making vaccination dsci=
- sions, because in some case getting the vaccine and
- then *not* getting the booster might lead to increased risk.=20
-
- Further information related to vaccination risks follows:=20
-
- From=20Cyndy Brunken:
-
- I posted this for Kathleen over on sci.med then I realized that=20
- misc.kidders might also benefit from the info contained herein.
- *****************************************************************
-
- DISCLAIMER: THIS MESSAGE IS BEING POSTED FOR KATHLEEN STRATTON BY
- SOMEONE NOT AFFILIATED WITH THE MESSAGE. I have read-only access to
- USENET and have followed the immunization discussions in the last few
- weeks. I think some of the participants will have an interest in the
- following information.
-
- An Institute of Medicine (IOM) committee has concluded in a new report
- that a causal relation exists between certain common childhood vaccines
- and specific, but rare, health problems. The committee also determined
- that there appears to be no causal relation between some of those same
- vaccines and other specific health problems. The vaccines studied
- include those used against tetanus, diphtheria, measles, mumps, polio,
- hepatitis B, and Haemophilus influenzae type b (Hib). =20
-
- The IOM is a private, non-profit organization that provides health
- policy advice under a congressional charter granted to the National
- Academy of Sciences. The IOM committee was NOT asked to assess risk-
- benefit or cost-benefit relations. Rather, the task was to evaluate all
- medical and scientific evidence bearing on the causal relation between
- childhood vaccines and specific, serious health outcomes.
-
- The report is entitled "Adverse Events Associated with Childhood
- Vaccines: Evidence Bearing on Causality". A previous IOM committee
- submitted a report in 1991 entitled "Adverse Effects of Pertussis and
- Rubella Vaccines". Both reports were mandated by the U.S. Congress in
- the 1986 National Childhood Vaccine Injury Act (P.L. 99-660). This law
- addressed many aspects of childhood immunization. Notably, it
- established a federal compensation program for those who have been
- injured by mandated childhood vaccines.
-
- The IOM committee reported that the evidence established a causal
- relation between diphtheria, tetanus, measles-mumps-and-rubella, and
- hepatitis B vaccines and anaphylaxis. The evidence established a causal
- relation between measles-mumps-and rubella vaccine and thrombocytopenia;
- between measles vaccine and death from measles infection (primarily in
- immunocompromised individuals); between oral polio vaccine and death
- from poliovirus infection (primarily in immunocompromised individuals);
- and between the oral polio vaccine and poliomyelitis disease.
-
- On the other hand, the committee found that the evidence favored
- rejection of a causal relation between diphtheria and tetanus vaccines
- and encephalopathy, infantile spasms, and SIDS. The committee found
- similarly regarding certain Hib vaccines and increased susceptibility to
- Hib disease. The committee investigated other serious health problems
- and classified their relation to vaccines in three other categories: no
- evidence, inadequate evidence to accept or reject a causal relation, and
- evidence favors acceptance of a causal relation. The specific relations
- are too numerous to list here. =20
-
- The committee noted that in most cases it was impossible to calculate an
- incidence rate or relative risk for these reactions, but that they were,
- on the whole, extremely rare.
-
- The final report will be available in late October or early November
- from National Academy Press, 1-800-624-6242. It will cost approximately
- $60.00. (The report on pertussis and rubella is still available) A few
- prepublication copies of the Executive Summary of the new, 1993 report
- are available from the project director at no cost on a first come-first
- served basis. Anyone wishing specific information about this report can
- email me, Kathleen Stratton, directly. I am the study director for this
- project. My internet address is kstratto@nas.edu
-
- *************************************************************************
-
- More information on the findings of the expert committee of the Institute o=
- f Medicine, along with a table showing in which
- categories they have placed various adverse events, and modified ACIP recom=
- mendations based on these findings, can be
- found in (MMWR 1996;45[No. RR-12]), or http://www.medscape.com/govmt/CDC/MM=
- WR/1996/sep/rr4512/rr4512.html.
- Between the publication of the 1993 report, and the publication of the 1996=
- update, two other IOM committees had met, and
- published findings concerning "concerning both the diphtheria and tetanus t=
- oxoids and pertussis vaccine (DTP) and chronic
- nervous system dysfunction ... and research strategies for vaccine-associat=
- ed adverse events" (MMWR 1996;45[No.
- RR-12]).=20
-
- From=20Mike Dedek:
-
- *************************************************************************
- New England Journal of Medicine 1987; 316: 1283-1288, May 14, 1987,=20
- "Compensating Children with Vaccine-Related Injuries", Iglehart, John K.
-
- The federal immunization program, by virtually all economic, medical, an=
- d
- political measures, is a stunning success story because of its record of
- protecting millions of children against the common infectious diseases of t=
- he
- young. But in recent years the program has come under a legal cloud that is
- threatening its stability, slowing the development of new vaccines, and
- sending vaccine prices sharply upward. To address these problems, Congress =
- has
- created a new federal program to compensate children who suffer vaccine-rel=
- ated
- injuries, but how it will be funded and whether it will achieve its goals r=
- emain
- open questions.
-
- The legal cloud has formed because, even when the best vaccine products =
- are
- properly administered and used, vaccines pose minute risks to those who rec=
- eive
- them, and an increasing number of lawsuits are seeking damages on behalf of
- injured persons. Dr. Louis Z. Cooper, representing the American Academy of
- Pediatrics, testified before Congress on March 5 about the nature of these
- risks. Cooper stated:
-
- One case of polio-like disease will result from each 2.6 million doses =
- of
- oral polio vaccine OPV , and a serious, permanent neurological injury will
- result from every 310,000 doses of DTP diphtheria, tetanus, and pertussis
- vaccine . In extremely rare cases, an encephalitis or nerve deafness will
- develop from MMR measles, mumps, and rubella vaccine . Approximately 75
- vaccine-related injuries per year are the price we pay to protect the more =
- than
- 3.8 million children born each year in this country.
-
- For five years, Congress has struggled to fashion legislation that addre=
- sses
- he complex issues related to the compensation of children injured by vaccin=
- es;
- in the process, it has explored virtually every conceivable policy option.
-
-
-
- *************************************************************************
-
- Q1.6 What are some contraindications to vaccinations?=20
-
- Contraindications vary with the vaccine, so contraindications for each spec=
- ific vaccine are given in the appropriate sections.
- Some common ones are: allergy to some substance contained in the vaccine (s=
- uch as eggs or thimerosal, a preservative used in
- some vaccines), a weakened immune system (which may make attenuated live va=
- ccines more risky), and pregnancy.=20
-
- The allergies to worry about, in particular, are those with an anaphylactic=
- or anaphylactoid reaction, e.g. hives, swelling of
- mouth and throat, difficulty breathing, hypotension, or shock.=20
-
- Breastfeeding is not a contraindication to vaccination. From Harrison's Int=
- ernal Medicine, "Breastfed infants can be immunized
- on a normal schedule. Breast feeding does not adversely affect the immunce =
- response and is not a contraindication for any
- vaccine. Breast-feeding mothers also may be vaccinated without any problem.=
- " (British Medical Journal 1994; 309:1073-5
- contains an article which confirms that breastfeeding will not interfere wi=
- th vaccination, and provides references to a couple of
- relevant studies.)=20
-
- Q1.7 How common are the diseases vaccinated against?=20
-
- I have extracted from table number 190, in _Statistical Abstracts of the Un=
- ited States_, the following table, showing the
- frequency, in the US, of some diseases for which vaccinations are either av=
- ailable and diseases for which I knew a vaccine was
- being developed or researched (obviously with more success in some cases th=
- an in others). Table information extracted from:=20
-
- No. 190. Specific Reportable Diseases - Cases Reported: 1970 to 1990
-
- Disease 1970 1980 1983 1984 1985
- AIDS (N/A) (N/A) 2,117 4,445 8,249
- Chickenpox (1000) (N/A) 190.9 177.5 222.0 178.2
- Diptheria 435 3 5 1 3
- Hepatitis B (serum) (1000) 8.3 19.0 24.3 26.1 26.6
- A (infectious) (1000) 56.8 29.1 21.5 22.0 23.2
- Measles (1000) 47.4 13.5 1.5 2.6 2.8
- Meningococcal infections 2,505 2,840 2,736 2,746 2,479 =20
- Mumps (1000) 105.0 8.6 3.4 3.0 3.0
- Pertussis (1000) 4.2 1.7 2.5 2.3 3.6
- Plague 13 18 40 31 17
- Poliomyelitis, acute 33 9 15 8 7
- Rabies, animal 3,224 6,421 5,878 5,567 5,565
- Rabies, human 3 _ 2 3 1
- Rubella (1000) 56.6 3.9 1.0 1.0 0.6
- Tetanus 148 95 91 74 83
- Tuberculosis (1000) 37.1 27.7 23.8 22.3 22.2
- Typhoid fever 346 510 507 390 402
-
- Disease 1986 1987 1988 1989 1990
- AIDS 13,166 21,070 31,001 33,722 41,595
- Chickenpox (1000) 183.2 213.2 192.9 185.4 173.1
- Diptheria _ 3 2 3 4
- Hepatitis B (serum) (1000) 26.1 25.9 23.2 23.4 21.1
- A (infectious) (1000) 23.4 25.3 28.5 35.8 31.4
- Measles (1000) 6.3 3.7 3.4 18.2 27.8
- Meningococcal infections 2,594 2,930 2,964 2,727 2,451
- Mumps (1000) 7.8 12.8 4.9 5.7 5.3
- Pertussis (1000) 4.2 2.8 3.5 4.2 4.6
- Plague 10 12 15 4 2
- Poliomyelitis, acute 8 6 9 5 7
- Rabies, animal 5,504 4,658 4,651 4,724 4,826
- Rabies, human _ 1 _ 1 1
- Rubella (1000) 0.6 0.3 0.2 0.4 1.1
- Tetanus 64 48 53 53 64
- Tuberculosis (1000) 22.8 22.5 22.4 23.5 25.7
- Typhoid fever 362 400 436 460 552
-
- Measles: 45 million cases and around 1 million deaths estimated in developi=
- ng countries in 1990. (Clements, Strassburg, Cutts,
- and Torel)=20
-
- Polio: 16,435 cases reported by 46 countries to the Expanded Programme on I=
- mmunization in 1990, a 39% decrease from
- 1989 when 26,916 cases were reported. (Hull and Ward)=20
-
- "Neonatal tetanus claimed the lives of over 433,000 infants in 1991. It is =
- endemic in over 90 countries throughout the world."
- (Whitman, Belgharbi, Gasse, Torel, Mattei, and Zoffman)=20
-
- Pertussis (whooping cough): 659,973 cases reported in 1987. (Galazka)=20
-
- The incidence of some of these diseases has changed significantly since the=
- tables in this section. More up to date information
- on worldwide incidence of vaccine preventable diseases can be found at http=
- ://www.who.org.=20
-
- Q1.8 What percentage of children are vaccinated?=20
-
- Some estimates of vaccination rates, from articles in World Health Statisti=
- cs Quarterly, 45, 1992:=20
-
- Measles: About 80% of the world's children aged less than 1 were reported t=
- o have received measles vaccine (a dramatic
- increase from 1983, when the figure was less than 20%). (Clements, Strassbu=
- rg, Cutts, and Torel)=20
-
- Polio: Estimated vaccination rate of 85% worldwide in 1990. This rate isn't=
- equally distributed, though. The Western Pacific
- Region had a coverage rate of 95%, and the South-East Asia Region 91%, but =
- the Africa Region had a coverage rate of only
- 56%. (Hull and Ward)=20
-
- DTP: Varies widely from country to country. The US, Canada, France, Norway,=
- Poland, Australia, China were among the
- countries with coverage rates over 80% in 1987-1989. (The article gives Yug=
- oslavia as also being in this category, but in view
- of the breakup of the country and the civil war there, I would suspect that=
- level hasn't been maintained.) England, Spain,
- Mexico, Turkey, and most of the countries in South America, as well as the =
- Soviet Union (now defunct) were in the 50-80%
- category. Sweden and many African countries had coverage rates of under 50%=
- . Coverage rates in the WHO regions were as
- follows: Africa 57%, Americas 75%, Eastern Mediterranean 80%, South-East As=
- ia 89%, Western Pacific 94%. (Galazka)=20
-
- From=20_Statistical Abstracts of the United States, tables no. 189, Percent=
- of Children Immunized Against Specific Diseases, by
- Age Group: 1980 to 1985 (I am including the totals only, but the table also=
- includes a breakdown by race)=20
-
- Disease All Respondents =20
- 1 to 4 years old =20
- 1980 1984 1985=20
- Diptheria-tetanus-pertussis 66.3 65.7 64.9
- Polio 58.8 54.8 55.3
- Measles 63.5 62.8 60.8
- Rubella 63.5 60.9 58.9
- Mumps 56.6 58.7 58.9
-
- Disease All Respondents =20
- 5 to 14 years old
- 1980 1984 1985=20
- Diptheria-tetanus-pertussis 74.0 73.8 73.7
- Polio 70.0 70.2 69.7
- Measles 71.0 73.5 71.5
- Rubella 74.0 72.4 70.2
- Mumps 63.2 70.9 71.6
-
- Respondents consulting records, 1985 (29 percent of white and 15 percent of=
- black or other respondents who consulted
- records for some or all vaccination questions)=20
-
- Disease 1 to 4 years 5 to 14 years
-
- Diptheria-tetanus-pertussis 87.0 93.0
- Polio 75.7 88.4
- Measles 76.9 87.4
- Rubella 73.8 85.3
- Mumps 75.5 87.1
-
- According to the California Morbidity for May 21, 1993, about one third of =
- infants were found not to be vaccinated, and more
- than half of all toddlers were behind schedule at their second birthday. Va=
- ccination rates were lower among black and Hispanic
- children. Only at school entry age did vaccination levels really rise, the =
- result of school requirements. By 1990, more than 90%
- of school age children were vaccinated. Immigration was cited as one factor=
- keeping vaccination rates low.=20
-
- The May 1, 1994 HICNet Medical News, citing MMWR, reports on vaccination co=
- verage of 2 year old children in the US
- from 1992-1993,=20
-
- "Vaccination coverage increased for three vaccines from 1992 to 1993: for t=
- hree or more doses of Hib, from 28.0% to 49.9%
- (p less than 0.05); for three or more doses of poliomyelitis vaccine, from =
- 72.4% to 78.4% (p less than 0.05); and for three or
- more doses of DTP/ diphtheria and tetanus toxoids (DT), from 83.0% to 87.2%=
- (p greater than 0.05). Coverage with
- measles-containing vaccine decreased from 82.5% to 80.8% (p greater than 0.=
- 05). Among 19-35-month-olds, 12.7% had
- received three or more doses of Hep B.=20
-
- From=201992 to 1993, the proportion of children who had received a combined=
- series of four or more doses of DTP/DT, three
- or more doses of polio vaccine, and one dose of MMR increased from 55.3% to=
- 64.8% (p less than 0.05), primarily because
- of increased coverage with the fourth DTP/DT dose (from 59.0% to 71.1% [p l=
- ess than 0.05])."=20
-
- More details on these statistics in that issue of HICNet Medical News. For =
- those who are interested, MMWR gives quarterly
- updates of vaccination coverage in the US, evaluating progress toward the n=
- ational goal of 90% coverage. These updates are
- included in HICNet Medical News when they come out, and MMWR itself can als=
- o be retrieved over the net. See the
- reference section in section 3 of this FAQ for information on retrieving MM=
- WR over the net. HiB and hepatitis B vaccination
- coverage has been increasing (as is to be expected, since those are the mos=
- t recently instituted vaccines). The March 5, 1995
- HICNet includes an MMWR report which shows HiB coverage rising to a record =
- high of 70.6% and Hep B coverage rising to
- 25.5% during the first quarter of 1994. However, a report in JAMA, cited in=
- a summary in Journal Watch for Jan 15, 1995
- (paper) or Feb 7, 1995 (electronic), "found that only 46 percent of white c=
- hildren and only 34 percent of black children had
- received adequate immunization by eight months of age (JAMA Oct 12, pp. 110=
- 5 and 1111)."=20
-
- Q1.9 What are some sources of further information about vaccinations?=20
-
- I don't have any addresses for information outside the US (except for the W=
- HO book on travel vaccinations); if people
- contribute them I'll add them.=20
-
- Information on vaccinations is available from: The Academy of Pediatrics, C=
- ommittee on Infectious Diseases, Evanston, Illinois
- 60204; Centers for Disease Control, Atlanta, Georgia 30333; Council on Envi=
- ronmental Health, American Medical
- Association, Chicago, Illinois 60610. The CDC also has a Voice/Fax Informat=
- ion Service. To access the CDC Voice
- Information System, telephone (404) 332-4555; to access the CDC Fax Informa=
- tion System, telephone (404) 332-4565.
- Their Web site is http://www.aap.org.=20
-
- Not specific to vaccinations, but useful in general for the effects of drug=
- s, illnesses, etc., during pregnancy is the UCSD
- Teratogen Registry (1-800-532-3749). Another general source of information =
- on illnesses is the National Foundation for
- Infectious Diseases, 4733 Bethesda Ave., Suite 750, Bethesda, Maryland 2081=
- 4 (USA).=20
-
- Critics of routine vaccination have set up their own information center; it=
- is called the National Center for Information on
- Vaccination and is based in Virginia. Their telephone number is 1-800-909-S=
- HOT (for orders only) or 703-938-DPT3 and
- their address is 512 W. Maple Ave. #206, Vienna VA 22180. Their web site ca=
- n be found at
- http://www.909shot.com/default.htm.=20
-
- Information on travel vaccinations is available from _Health Information fo=
- r International Travel_, published annually by the
- Centers for Disease Control, and available from: Superintendent of Document=
- s, US Government Printing Office, Washington,
- DC 20402. This publication also has a lot of other information on health-re=
- lated travel issues, and some information on the
- regular childhood vaccinations as well (it also includes a table, for all v=
- accinations, of which are contraindicated during
- pregnancy). It is also available in some public libraries. The CDC informs =
- all state and many city and county health departments
- twice monthly about changing risks and requirements. Another source is _INT=
- ERNATIONAL TRAVEL AND HEALTH:
- Vaccination Requirements and Health Advice_, copies of which may be ordered=
- from WHO Distribution and Sales,
- CH-1211, Geneva 27, telephone (41 22) 791 2476; fax (41 22) 788 0401. (More=
- sources of information about travel
- vaccinations can be found in the section of this FAQ which covers them.)=20
-
- The reference section of this FAQ lists the sources I used in putting toget=
- her the FAQ. Some of the ones I used most heavily
- include Harrison's Principles of Internal Medicine, The Merck Manual, _Taki=
- ng Care of Your Child: A Parents' Guide to
- Medical Care_, by Pantell, Fries, and Vickery, The Physician's Desk Referen=
- ce, The American Hospital Formulary Service
- Drug Information, and _The Wellness Encyclopedia_ From the editors of the U=
- C Berkeley Wellness Letter, and, more
- recently, http://www.medscape.com. Here is a list of other people's suggest=
- ions (to which people are welcome to add):=20
-
- Suggested by Heather Madrone:=20
-
- Robert Mendelsohn _How to Raise a Healthy Child_ George Wootan _Take Charge=
- of Your Child's Health_=20
-
- Suggested by Roger Barr:=20
-
- recommend books by Harris Coulter among others: Shot in the Dark (about DPT=
- vaccinations) and another about violence in
- society due to neurological damage caused by vaccinations (autoimmune respo=
- nses leading to meningitis)=20
-
- Suggested by John:=20
-
- http://www.whale.to/vaccines.html=20
-
- =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
- =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
- =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
- =3D=3D=3D=3D
- Section 2. The recommended vaccination schedule
- [This section last updated on October 23, 1999.]=20
-
- Q2.1 What is the recommended vaccination schedule in the US for infants?=20
-
- The following schedule is based on the schedule published on January 15, 19=
- 99, published in MMWR 48(01);8-16 and the
- schedule on the AAP website as of August 1999.=20
-
- Vaccine Recommended Age (or Range)
-
- Hepatitis B Birth to 2 mos, 2-4 mos, 6-18 mos=20
- DTaP 2 mos, 4 mos, 6 mos, 15-18 mos, 4-6 yrs
- DT 11-12 yrs or 14-16 yrs, every ten years thereafter
- HiB 2 mos, 4 mos, 6 mos, 12-15 mos
- Polio (IPV) 2 mos, 4 mos, 6-18 mos, 4-6 yrs
- MMR 12-15 mos, 4-6 yrs
- Varicella 12-18 mos
-
- Notes: (1) At 11-12 years, hepatitis B, MMR, and Varicella vaccines to be a=
- ssessed and administered if necessary. (2)
- Hepatitis B vaccine schedule in infants depends on the mother's hepatitis B=
- surface antigen status; where this status is positive
- or unknown, hepatitis B vaccination is recommended within 12 hours of birth=
- , but where this status is negative, the vaccine may
- be given at any time between birth and 2 months. (3) Three different Hib co=
- njugate vaccines are licensed. Depending on which
- is used, the dose at 6 months may or may not be required. (4) As of July, 1=
- 999, the AAP recommended a temporary delay
- (until thimerosal-free Hepatitis B vaccine is available), for children of H=
- epatitis B surface antigen negative mothers, in the first
- shot, to six months. The CDC continues to recommend that the shot be given =
- at from 2-6 months. As of September, 1999, a
- hepatitis B vaccine without thimerosal has become available, so, as supplie=
- s of this vaccine are distributed, the temporary delay
- should come to an end. (5) In 1999, ACIP recommended hepatitis A vaccine fo=
- r all children aged 2 years and older in the 11
- Western states where incidence is especially high (at least 20 cases per 10=
- 0,000 people, twice the national average). These
- states are: Arizona, Alaska, California, Idaho, Nevada, New Mexico, Oklahom=
- a, Oregon, South Dakota, Utah and
- Washington.=20
-
- There has been a difference of opinion about when the second dose of MMR sh=
- ould be given. ACIP recommended 4-6 years,
- but the AAP recommended at entry to middle or junior high school. Health au=
- thorities in different states in the US have
- adopted one or the other of these requirements. The advantage of giving the=
- second dose at 4-6 years is that compliance may
- be higher if it is made a requirement of entrance to public schools. The ad=
- vantage of giving the second dose later is that it will
- be closer in time to the age at which measles outbreaks have been occuring,=
- and may increase immunity at that time. The AAP
- and ACIP have since coordinated their recommendations and agreed on 4-6 yea=
- rs.=20
-
- This schedule is subject to change, and so, if you look at different medica=
- l and childcare books, you may see slightly different
- schedules. Recent changes include the addition of a new vaccine for haemoph=
- ilus influenzae B, the addition of the hepatitis B
- vaccine to the schedule, and the addition of a second dose of MMR at entry =
- to primary or middle school, in response to an
- increased incidence in measles among teenagers, and the addition of the chi=
- cken pox vaccine to the schedule. The FDA
- approved a couple of new vaccines in 1993: a combination of Haemophilus inf=
- luenzae B vaccine and DTP vaccine, and a new
- dosage for the hepatitis B vaccine. In 1992, a new acellular pertussis vacc=
- ine was approved. In 1995, the varicella zoster
- (chicken pox) vaccine was approved. On July 12, 1996, ACIP recommended that=
- this vaccine be added to the schedule. The
- newly approved hepatitis A vaccine was *not* added to the schedule; this va=
- ccine was recommended only for people at
- particular risk, such as travellers to countries where hepatitis A is more =
- prevalent (more recently, it has been recommended in
- states where hepatitis A is particularly prevalent). In 1996, an acellular =
- pertussis vaccine was approved for the earlier shots in
- the pertussis series (previously it had only been approved for the fourth a=
- nd fifth shots), so that it is now the preferred vaccine
- for all shots. As a result of progress in the global eradication of polio, =
- in 1997, ACIP recommended that the first doses of polio
- vaccine use the inactivated polio vaccine (IPV) rather than the oral polio =
- vaccine (OPV). In January, 1999, the AAP
- recommended that all doses use IPV, and on June 17, 1999, the ACIP followed=
- suit (this new ACIP recommendation will
- become effective on January 1, 2000).=20
-
- Rotavirus vaccine was added to the schedule at 2, 4, and 6 months, after it=
- s approval on August 31, 1998, but on July 7,
- 1999, this recommendation was suspended, pending collection of further data=
- , based on early surveillance reports of
- intussusception (a type of bowel obstruction), and on October 15, 1999, the=
- vaccine was withdrawn from the market.=20
-
- Q2.2 What is the recommended vaccination schedule in the US for older child=
- ren who were not vaccinated in infancy?=20
-
- Schedules for people not vaccinated in infancy can be found, among other pl=
- aces, in the Merck Manual and in AMA Drug
- Evaluations Annual. There are two schedules, one for children under 7, and =
- one for people (children or adults) over 7. The
- reason is that pertussis vaccine should not be given to anyone over 7. Pert=
- ussis is a mild disease over the age of 7, but a serious
- one for the very young. For that reason, the risks of the vaccine outweigh =
- the risks of the disease after the age of 7. It is
- possible that, with the availability of a less reactogenic acellular vaccin=
- e, this recommendation may change, and pertussis
- vaccine be give to older people as well, but such a change will not occur w=
- ithout further study.=20
-
- Q2.3 What is the recommended vaccination schedule in the US for adults?=20
-
- If they haven't been vaccinated at all, see the answer to question 2.22.2. =
- If they have been vaccinated, then a tetanus and
- diptheria booster is recommended every ten years (or five years in case of =
- a very dirty wound). People in certain high risk
- groups are advised to get flu shots annually (see the section on the flu va=
- ccine).=20
-
- Q2.4 Who determines this schedule?=20
-
- Two bodies set these schedules. They are the Immunization Practices Advisor=
- y Committee (ACIP) of the Public Health
- Service, and the American Academy of Pediatrics Committee on Infectious Dis=
- eases. During 1994, these organizations were
- part of a working group which included representatives from the American Ac=
- ademy of Family Physicians which developed
- one schedule to incorporate ACIP and AAP recommendations. A new schedule wa=
- s been endorsed by these groups and
- became effective January 1995. In modifications of the schedule since then,=
- sometimes one group has differed slightly from the
- other, but in time they reconcile their schedules.=20
-
- Q2.5 What other US government organizations are concerned with vaccinations=
- ?=20
-
- Q2.5.1 What is the National Vaccine Injury Compensation Program (VICP)?=20
-
- [Note: Answers to this and the following several questions are extracted fr=
- om a longer list of questions and answers put out by
- the National Vaccine Injury Compensation Program (1-800-338-2382).]=20
-
- The National Childhood Vaccine Injury Act of 1986 (the Act) established the=
- VICP. This Program went into effect in October
- 1988 and is a Federal "no-fault" system designed to compensate those indivi=
- duals, or families of individuals, who have been
- injured by childhood vaccines, whether administered in the private or publi=
- c sector. The Program is administered jointly by the
- Court, the Department of Health and Human Services (HHS), and the Departmen=
- t of Justice (DOJ).=20
-
- Q2.5.2 What vaccines are covered?=20
-
- Diphtheria, tetanus, pertussis (DTP, DT, TT, or Td), measles, mumps, rubell=
- a (MMR or any components), and polio (OPV or
- IPV).=20
-
- Q2.5.3 Who may file a claim?=20
-
- A claim may be made for any injury or death thought to be a result of a cov=
- ered vaccine. These injuries may include, but are
- not limited to: anaphylaxis, paralytic polio, seizure disorders, and enceph=
- alopathy. The injured individual may file; or a parent,
- legal guardian, or trustee may file on behalf of a child or an incapacitate=
- d person.=20
-
- Claims need to be filed within 36 months after the first symptoms appeared =
- and show that effects have continued for at least 6
- months (in the case of vaccine related injuried) or be filed within 24 mont=
- hs of the death and within 48 months after the onset of
- the vaccine-related injury from which the death occurred. The time for fili=
- ng claims for injuries resulting from vaccines
- administered prior to October 1, 1988, has expired.=20
-
- The petitioner must either prove that the vaccine caused the injury or sign=
- ificantly aggravated a preexisting condition, or the
- petitioner must show that an injury on the Vaccine Injury Table occurred (m=
- ost claims involve "Table Injuries" because it is
- easier to demonstrate a Table Injury than to prove that the vaccine caused =
- the condition). A modified Vaccine Injury Table is
- effective for claims filed on or after March 10, 1995.=20
-
- Q2.5.4 Who can I contact to get more information about the Program?=20
-
- 1. The toll-free number for the National Vaccine Injury Compensation Progra=
- m is 1-800-338-2382 to obtain an information
- packet detailing how to file a claim, criteria for eligibility, and the doc=
- umentation required. For further information write to:
- National Vaccine Injury Compensation Program, Parklawn Building, Room 8A-35=
- , 5600 Fishers Lane, Rockville, Maryland
- 20857.=20
-
- 2. For information on the rules of the U.S. Court of Federal Claims, includ=
- ing requirements for filing a petition, call
- 1-202-219-9657 or write to: U.S. Court of Federal Claims, 717 Madison Place=
- , N.W., Washington, DC 20005.=20
-
- Q2.5.5 What is VAERS?=20
-
- [LG: Information about VAERS excerpted and summarized from material from VA=
- ERS. This section last updated in 1994.]=20
-
- The National Childhood Vaccine Injury Act (NCVIA) of 1986 mandated the repo=
- rting of certain adverse events following
- vaccination. This Act led to the establishment of the Vaccine Adverse Event=
- Reporting System (VAERS) in November 1990
- by the Department of Health and Human Services. VAERS provides a database m=
- anagement system for the collection and
- analysis of data from reports of adverse events following vaccination. VAER=
- S is operated jointly by the Centers for Disease
- Control and Prevention (CDC) and the Food and Drug Administration (FDA). Bo=
- th the CDC and the FDA review data
- reported to VAERS.=20
-
- Between January 1, 1991 and December 31, 1994, VAERS has received approxima=
- tely 45,000 reports. VAERS currently
- receives approximately 800-1000 reports each month.=20
-
- Q2.5.6 Who can report to VAERS?=20
-
- Any one can report to VAERS. VAERS reports are usually submitted by health =
- care providers, vaccine manufacturers, and
- vaccine recipients (or their parents/guardians). Patients, parents, and gua=
- rdians are encouraged to seek the help of a
- health-care professional in reporting to VAERS.=20
-
- Q2.5.7 What events should be reported to VAERS?=20
-
- The NCVIA requires the reporting of any events in the Reportable Events Tab=
- le which occur within the time period specified
- and any event listed in the manufacturer's package insert as a contraindica=
- tion to subsequent doses of the vaccine. A copy of
- the Table can be obtained by calling 1-800-822-7967. Although NCVIA only re=
- quires reporting of the events mentioned in
- the Table, VAERS encourages all reporting of any clinically significant adv=
- erse event occurring after the administration of any
- vaccine licensed in the United States.=20
-
- On average, about 17% of the reports reflect adverse events resulting in li=
- fe-threatening illness, hospitalization, permanent
- disability, extended hospital stay or death. The remaining 83% of the repor=
- ts primarily describe events such as fever, local
- reactions transient crying or mild irritability, and other less serious exp=
- eriences.=20
-
- Q2.5.8 Are all events reported to VAERS caused by vaccinations?=20
-
- Again, VAERS accepts all reports of adverse events following vaccination, s=
- o not all events reported to VAERS are caused
- by vaccines. In fact, limitations such as differential reporting rates, sim=
- ultaneous administration of different vaccine antigens,
- temporal reporting bias and lack of background vaccination rate data genera=
- lly prevent the determination of vaccine-event
- causal associations using VAERS data.=20
-
- Q2.5.9 How can I get rapid information on VAERS, such as how to file a repo=
- rt?=20
-
- There is a toll-free VAERS information line that is currently receiving ove=
- r 650 calls per month.=20
-
- A VAERS report form has been designed to facilitate and standardize the pro=
- cess of reporting adverse events following
- vaccination to VAERS. For a sample copy of the VAERS report form, see the l=
- ast page of the 1995 Physician=FFs Desk
- Reference (PDR) or page 34 of the 1994 Redbook.=20
-
- Report forms can be obtained by calling VAERS at 1-800-822-7967. Xerox copi=
- es of the PDR or Redbook forms may also
- be used.=20
-
- Q2.5.10 Have there been any comprehensive scientific studies on adverse eve=
- nts following immunization?=20
-
- Yes. In 1986, the US Congress mandated the Institute of Medicine to conduct=
- a scientific review of the possible adverse
- events following commonly used childhood vaccines. The Institute convened a=
- n expert panel to implement this mandate and has
- published two reports on its findings. Both reports concluded that adverse =
- events caused by vaccines are rare.=20
-
- 1. Howson, et al., Adverse Effects of Pertussis and Rubella
- Vaccines.
- Washington, DC: National Academy Press, 1991.
- 2. Stratton, et al., Adverse Events Associated with Childhood
- Vaccines,
- Evidence Bearing on Causality. Washington, DC: National Academy
- Press, 1993.
-
- Q2.5.11 Are VAERS data available to the public?=20
-
- Yes. Once any identifying information is removed, VAERS data are made avail=
- able to the public, for a fee, through the
- National Technical Information Service (NTIS) at:=20
-
- National Technical Information Service
- 5285 Port Royal Road
- Springfield, VA 22161
- (703-487-4650).
-
- Q2.6 What vaccination schedules are used in other countries?=20
-
- Routine vaccination is practiced in many countries, but specific schedules =
- vary from country to country. The vaccine for
- tuberculosis is given in some countries where tuberculosis is common, but i=
- s not given in the US. Tetanus toxoid is given to
- pregnant women in countries where neonatal tetanus is common. Some countrie=
- s, like the US, vaccinate all infants against
- rubella, while others choose instead to vaccinate adolescent girls (as of 1=
- 992 - I am not sure whether this is still true, as I know
- that the UK, at least, has switched to infant vaccination since then). (Gal=
- azka). When this FAQ was first written, there were
- significant differences between countries in requirements and coverage for =
- the pertussis vaccine, but, with the introduction of
- the new acellular pertussis vaccine, countries which had increased the age =
- of pertussis vaccination or made it optional have
- returned it to their schedules.=20
-
- There is also some variation in the schedules at which vaccines are given. =
- For example, schedules for DTP vaccine include 2,
- 3, and 4 months, or 3, 4, and 5 months, or 3, 5-6, and 7-15 months, and boo=
- ster doses are given in some countries at 12-14
- months, and in some countries at 3-6 years (Galazka - two charts in this ar=
- ticle give DTP schedules for various countries in
- Europe and percentages of countries following different schedules in differ=
- ent regions of the world).=20
-
- People outside the US are advised to consult their doctors about the specif=
- ics of vaccination schedules in their countries
- (keeping vaccination schedules for all the countries represented in misc.ki=
- ds current is probably too big a job for one FAQ
- maintainer). http://www.who.org is also a good source for vaccination sched=
- ules in various countries.=20
-
- Q2.7 What international bodies are concerned with vaccinations?=20
-
- The World Health Service Expanded Programme on Immunization works to increa=
- se the percentage of the world's children
- vaccinated against certain target diseases: poliomyelitis, measles, tubercu=
- losis, diptheria, and tetanus. The WHO/UNDP
- (United Nations Development Programme) Programme for Vaccine Development pr=
- omoted research into new and improved
- vaccines. The Children's Vaccine Initiative, founded in 1990 by UNICEF, UND=
- P, the Rockefeller Institute, the World Bank,
- and WHO, promoted new and better vaccines for the world's children, coopera=
- ting with the Programme for Vaccine
- Development and the EPI. (Hartveldt) WHO also has three centers which coope=
- rate with organizations in 79 countries to
- formulate the annual flu vaccine. (Ghendon)
-