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M94A2687.TXT
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1994-10-25
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Document 2687
DOCN M94A2687
TI A fast, simple and visual HIV antibody test in Zambian sera/plasma.
DT 9412
AU Musonda RM; Kaetano L; Chizu C; Mluanda F; Tropical Diseases Research
Centre, Ndola, Zambia.
SO Int Conf AIDS. 1994 Aug 7-12;10(1):248 (abstract no. PB0421). Unique
Identifier : AIDSLINE ICA10/94369888
AB OBJECTIVE: To evaluate the use of a simple/rapid test for detection of
antibodies against HIV-1/HIV-2 in patients sera and donors in Zambia.
METHODS: A total of 202 serum/plasma from successive, unselected
patients attending antenatal (ANC), gynaecology (gyea), medical,
sexually transmitted diseases (STD) clinic, medical check-up and blood
donors and 10 unknown sera from CDC were tested for antibodies against
HIV using the following HIV Test kits: (i) Capillus HIV-1/HIV-2 direct
latex agglutination (ii) Recombinant HIV-1/HIV-2 Rapid Test Device (RTD)
(iii) HIV-Spot HIV-1/HIV-2 (iv) Wellcozyme HIV Recombinant (ELISA)
VK56/57 (v) Wellcozyme HIV-1/HIV-2 ELISA VK54/55 and Western Blot as
final criteria for positivity and negativity. RESULTS: Of the 212
serum/plasma samples tested 63 sample were confirmed HIV antibody
positive. The sensitivity of the all five tests was 100% and 98% for
Wellcozyme VK56/57. However, only the Capillus and the RTD gave 100%
specificity and positive predictive value but the rest of the kits gave
specificity ranging from 98-86% and the Wellcozyme HIV-1/HIV-2 ELISA
gave the lowest positive predictive value. The Capillus was the
simplest, fastest test kit and no need for extra equipment, consumables,
power supply, or well trained manpower or technician. DISCUSSION AND
CONCLUSIONS: The Capilus latex agglutination test is suitable for both
small and large volume testing of blood samples/plasma/sera, for
emergency testing of blood donors, for sentinel surveillance or for
patients inclinical setting such as STD clinic where HIV testing and
counselling could be promptly implemented. Therefore, the Capillus test
kits is recommended for use in most countries in sub Saharan Africa
where the standard screening procedures are impractical or not available
or where the cost of buying an ELISA reader, a washer and equipment and
supplies of HIV testing can exceed the annual budget of the whole
hospital laboratory.
DE AIDS Serodiagnosis/*METHODS Blood Donors Blotting, Western
Comparative Study *Developing Countries Enzyme-Linked Immunosorbent
Assay Female Human HIV Antibodies/*BLOOD HIV
Seropositivity/*DIAGNOSIS/IMMUNOLOGY HIV-1/*IMMUNOLOGY
HIV-2/*IMMUNOLOGY Male Predictive Value of Tests Pregnancy Zambia
MEETING ABSTRACT
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).