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1994-10-25
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Document 2330
DOCN M94A2330
TI HIV surveillance method by salivary HIV-antibody testing.
DT 9412
AU Meesiri S; Tussana P; Jugsudee A; Eiamtrakul S; Supakalin P; Sirisopana
N; Singharaj P; Armed Forces Research Institute of Medical Sciences
(AFRIMS),; Bangkok, Thailand.
SO Int Conf AIDS. 1994 Aug 7-12;10(1):329 (abstract no. PC0251). Unique
Identifier : AIDSLINE ICA10/94370245
AB OBJECTIVE: To assess sensitivity and specificity of salivary
HIV-antibody tests as a surveillance method in young men entering the
Royal Thai Army. METHODS: Paired serum and saliva specimens were
collected from 21-year-old men enlisted by the Royal Thai Army in
November 1993 from Chiengmai and Bangkok metropolitan areas. Saliva
specimen was obtained using the Omni-Sal saliva collection device. Serum
specimen was obtained by venipuncture. Serum specimens were tested using
EIA1 (Abbott HIV-1/HIV-2) and GPA (Serodia; Fujirebio, Japan) assays.
Reactive serum specimens were tested by Western blot assay (HIV Blot
2.2, Diagnostic Biotechnology, Singapore). Saliva specimens were tested
by EIA1, GPA, and EIA2 (Detect-HIV HIV-1/HIV-2) assays. RESULTS: From a
total of 1,295 men it was found that 107 men had seropositive for
HIV-antibody. There were 9 false-positive cases by GPA in saliva and 1
false-negative case by EIA1 in saliva. Serum tests did not show any
false result and were used as reference standard methods. Comparatively,
saliva test methods yielded the following percentages of
sensitivity/specificity: GPA 100/99.24; EIA1 99.07/100; and EIA2
100/100, respectively. Similarly, the percentages for predictive value
of positive/predictive value of negative are: GPA 92.24/100; EIA1
100/99.91; and EIA2 100/100, respectively. CONCLUSIONS: Saliva specimen
collection is easy to perform, non-invasive, safe to use, and thus,
provides alternative method to blood collection. Preliminary test
results demonstrated excellent sensitivity and specificity in the
detection of salivary HIV-antibody by EIA assays. Consequently, it is
suggested that at least two assays by identical or different salivary
HIV-antibody tests be performed in HIV surveillance. Further study is
still needed before the approaches could finally be implemented as
alternative methods to serum assays.
DE Adult AIDS Serodiagnosis/*METHODS Human HIV Antibodies/*ANALYSIS HIV
Seropositivity/DIAGNOSIS/*EPIDEMIOLOGY HIV-1/IMMUNOLOGY
HIV-2/IMMUNOLOGY Male Military Personnel/*STATISTICS & NUMER DATA
*Population Surveillance Predictive Value of Tests Saliva/*IMMUNOLOGY
Thailand/EPIDEMIOLOGY MEETING ABSTRACT
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).