Reuters Health Information Services (07/26/99)
Investigators believe that children who inherit the homozygous
delta 32 CCR5 genotype may be protected from vertical HIV-1
infection. The homozygous delta 32 CCR5 genotype has been
observed to confer resistance in adults. Dr. Sean Philpott,
of the New York State Department of Health in Albany, and
colleagues, investigated by determining the CCR5 genotype in
552 infants born to women infected with HIV-1. The
researchers, who reported their findings in the July 1st issue
of the Journal of Acquired Immune Deficiency Syndromes,
suggest that the delta 32 homozygous genotype may provide
resistance against both sexual and parental transmission of
HIV-1.