To investigate evidence for resistance to HIV-1 infection associated with the heterozygous genotype CCR5-+/Delta32 and with the homozygous genotype CCR5-Delta32/Delta32, which results in a nonfunctional CCR5 receptor.
Department of Environmental Medicine, New York University School of Medicine, 650 First Avenue, New York, NY 10016-3240, USA. michael.marmor@med.nyu.edu