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M9650458.TXT
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1996-03-09
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Document 0458
DOCN M9650458
TI Inactivation of HIV-1 by chemical disinfectants: sodium hypochlorite.
DT 9605
AU Van Bueren J; Simpson RA; Salman H; Farrelly HD; Cookson BD; Laboratory
of Hospital Infection, Central Public Health; Laboratory, London, UK.
SO Epidemiol Infect. 1995 Dec;115(3):567-79. Unique Identifier : AIDSLINE
MED/96150221
AB The efficacy of sodium hypochlorite was assessed against human
immunodeficiency virus type 1 suspended in low (8% v/v) or high (80%
v/v) concentrations of serum or in a high (80%) concentration of blood.
In the presence of 8% serum, 100 p.p.m. available chlorine in the
disinfectant test mixture inactivated 3.75 log TCID50 HIV/ml within 30
s. When the test mixture contained 80% serum, 500 p.p.m. available
chlorine inactivated more than 4 log TCID50 HIV/ml in 1-2 min. Lower
concentrations of available chlorine were unable to inactivate the virus
completely. In the presence of 80% blood, 1000 p.p.m. available chlorine
in the disinfectant test mixture was unable to inactivate 3.75 log
TCID50 HIV/ml, although 2500 p.p.m. available chlorine was able to
inactivate at least 1.5 log TCID50 HIV/ml. In all test mixtures, the
chlorine rapidly became combined and thus less active. Our results
emphasise the importance of cleaning prior to disinfection with sodium
hypochlorite since it may prove to be ineffective in the presence of
high levels of organic matter. In cases where prior cleaning is
impossible, care must be taken to use the higher recommended
concentration (a minimum of 10,000 p.p.m. available chlorine).
DE Cell Survival/DRUG EFFECTS Cytopathogenic Effect, Viral/DRUG EFFECTS
Disinfectants/*PHARMACOLOGY Disinfection/METHODS Human HIV-1/*DRUG
EFFECTS Leukocytes, Mononuclear/DRUG EFFECTS/VIROLOGY Sodium
Hypochlorite/*PHARMACOLOGY Support, Non-U.S. Gov't JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).