TY - JOUR
T1 - Infection with HIV-1 subtypes B and E in injecting drug users screened for enrollment into a prospective cohort in Bangkok, Thailand
AU - Kitayaporn, Dwip
AU - Vanichseni, Suphak
AU - Mastro, Timothy D.
AU - Raktham, Suwanee
AU - Vaniyapongs, Thamnoon
AU - Des Jarlais, Don C.
AU - Wasi, Chantapong
AU - Young, Nancy L.
AU - Sujarita, Sathit
AU - Heyward, William L.
AU - Esparza, José
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1998/11/1
Y1 - 1998/11/1
N2 - From May through August 1995, a cross-sectional survey was conducted among injecting drag users (IDUs) drawn from 15 drug treatment clinics in Bangkok and who were not known to be HIV-seropositive, to determine the prevalence of HIV-1 subtypes B and E and related risk behaviors, and to offer enrollment in a prospective cohort study. IDUs who voluntarily consented were interviewed, and blood specimens were tested for the presence of HIV antibodies. HIV-l-seropositive specimens were tested for subtypes B' (Thai B) and E by using V3 loop peptide enzyme immunoassays specific for these HIV-1 genetic subtypes. Of 1674 IDUs studied, the mean age was 31.2 years (interquartile range, 25-37 years), 94.8% were men, and 29.3% were HIV-l- seropositive. On multiple logistic regression analysis, HIV-1 seropositivity was associated with older age, not being married, less education, needle sharing, and incarceration. HIV-1 subtype B' accounted for 65% of prevalent infections and subtype E, 35%. Infection with subtype E was associated with younger age and did not seem to be associated with sexual risk behaviors, which were uncommon in general. Bangkok IDUs continue to be at high risk for HIV-1 infection related to needle sharing and incarceration. Although HIV-1 subtype B' accounts for most prevalent infections, subtype E seems to be more prevalent among younger IDUs, and most infections seem likely to result from parenteral transmission.
AB - From May through August 1995, a cross-sectional survey was conducted among injecting drag users (IDUs) drawn from 15 drug treatment clinics in Bangkok and who were not known to be HIV-seropositive, to determine the prevalence of HIV-1 subtypes B and E and related risk behaviors, and to offer enrollment in a prospective cohort study. IDUs who voluntarily consented were interviewed, and blood specimens were tested for the presence of HIV antibodies. HIV-l-seropositive specimens were tested for subtypes B' (Thai B) and E by using V3 loop peptide enzyme immunoassays specific for these HIV-1 genetic subtypes. Of 1674 IDUs studied, the mean age was 31.2 years (interquartile range, 25-37 years), 94.8% were men, and 29.3% were HIV-l- seropositive. On multiple logistic regression analysis, HIV-1 seropositivity was associated with older age, not being married, less education, needle sharing, and incarceration. HIV-1 subtype B' accounted for 65% of prevalent infections and subtype E, 35%. Infection with subtype E was associated with younger age and did not seem to be associated with sexual risk behaviors, which were uncommon in general. Bangkok IDUs continue to be at high risk for HIV-1 infection related to needle sharing and incarceration. Although HIV-1 subtype B' accounts for most prevalent infections, subtype E seems to be more prevalent among younger IDUs, and most infections seem likely to result from parenteral transmission.
KW - Asia Drug users
KW - HIV
KW - HIV-1 subtypes
KW - Molecular epidemiology
KW - Prevalence
KW - Thailand
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U2 - 10.1097/00042560-199811010-00012
DO - 10.1097/00042560-199811010-00012
M3 - Article
C2 - 9803972
AN - SCOPUS:13144293085
SN - 1525-4135
VL - 19
SP - 289
EP - 295
JO - Journal of Acquired Immune Deficiency Syndromes
JF - Journal of Acquired Immune Deficiency Syndromes
IS - 3
ER -