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Document 2417
DOCN M94A2417
TI HIV-1 genotypes in infants and their mothers, Bangkok, Thailand.
DT 9412
AU Samakoses R; Phramonkutklao Hospital, Bangkok, Thailand.
SO Int Conf AIDS. 1994 Aug 7-12;10(1):309 (abstract no. PC0164). Unique
Identifier : AIDSLINE ICA10/94370158
AB OBJECTIVE: To study HIV-1 genotypes in infants born at Phramongutklao
(PMK) hospital, Bangkok, Thailand and their mothers. METHODS: Between
Dec 92 and Jan 94, PCR was performed on blood specimens from 21 infants
born to HIV(+) mothers at PMK hospital. Blood samples from 10 mothers
were also tested. PCR was performed using HIV-1 specific primers from
gag and env regions. Universal primers were used to detect HIV-1 DNA.
Seven genotype specific primers (3 gag and 4 env) were used to
provisionally differentiate env genotype B from env genotype E in
infected Thais. RESULTS: During the study period there were 64
deliveries to HIV(+) mothers. Twenty-one (33%) infants (age range 20 to
201 days, median = 60) were tested by PCR. PCR was positive in 5 (25%);
all were HIV-1 genotype E. The 5 PCR(+) infants were between 1 and 2 mos
of age at the time of detection. PCR was (+) in 9 (90%) of 10 mothers
tested. Seven HIV strains in mothers were genotype E and 2 were
unclassified. All of the PCR(+) infants were symptomatic by 2 months of
age (CDC classification P2A). CD4 counts were available from all 16
PCR(-) infants and were within the normal range. CD4 counts in 2 of 5
PCR(+) infants were below the age-adjusted 5th percentile. CONCLUSIONS:
HIV-1 env genotype E was apparently the predominant strain in vertically
transmitted HIV-1 infection in Bangkok during the study period. Infants
infected with genotype E in this study became symptomatic at an early
age.
DE Female Genes, env Genes, gag Genotype Human HIV
Seropositivity/*MICROBIOLOGY HIV-1/*GENETICS/ISOLATION & PURIF Infant,
Newborn Polymerase Chain Reaction Pregnancy Pregnancy Complications,
Infectious/*MICROBIOLOGY RNA, Viral/ANALYSIS Thailand MEETING
ABSTRACT
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).