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M94A2707.TXT
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1994-10-25
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Document 2707
DOCN M94A2707
TI Field assessment of HIV antibody testing strategies not requiring the
western blot.
DT 9412
AU Tamashiro H; Maskill W; Belsey E; Wasi C; M'Boup S; Gershy-Damet G;
Liomba G; World Health Organization, Global Programme on AIDS, Geneva,;
Switzerland.
SO Int Conf AIDS. 1994 Aug 7-12;10(1):243 (abstract no. PB0400). Unique
Identifier : AIDSLINE ICA10/94369868
AB OBJECTIVE: To determine under field conditions the reliability of
testing strategies which use various combinations of enzymes-linked
immunosorbent assay (ELISA's) and/or simple/rapid (S/R) tests in place
of the conventional ELISA-Western Blot (WB) strategy. METHOD: Sera from
four countries (Cote d'Ivoire, Malawi, Senegal and Thailand) were tested
by ELISA's and S/R tests. Sera found reactive by ELISA or S/R assay were
tested by WB. The data was analysed to determine which combination of
ELISA's and/or S/R assays provided the same result as an ELISA-WB
combination. RESULTS: None of the combinations of either 2 or 3 ELISA's
or S/R's used to sequentially test sera found reactive by a previous
test were shown to produce both 100% sensitivity and specificity.
However, 12 combinations of 2 ELISA's and 24 combinations of 3 ELISA's
were shown to produce 100% sensitivity, with 4 of the 12 and 8 of the 24
combinations producing > 99.0% specificity. Combinations of ELISA tests
proved more reliable than combinations of S/R's. DISCUSSION AND
CONCLUSION: Following appropriate in-field assessment, combinations of
ELISA tests can be selected that will routinely provide at a much lower
cost, results that are as reliable as the ELISA-WB combination.
DE *AIDS Serodiagnosis *Blotting, Western Comparative Study
Enzyme-Linked Immunosorbent Assay/*METHODS Human HIV Antibodies/*BLOOD
HIV Seropositivity/*DIAGNOSIS/IMMUNOLOGY Predictive Value of Tests
Reproducibility of Results MEETING ABSTRACT
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).