Presence of human immunodeficiency virus (HIV) type 1 subtype A infection in a New York community with high HIV prevalence: a sentinel site for monitoring HIV genetic diversity in North America. Centers for Disease Control and Prevention-Bronx Lebanon HIV Serosurvey Team

J Infect Dis. 1997 Dec;176(6):1629-33. doi: 10.1086/517343.


To determine whether US residents are infected with subtypes of human immunodeficiency virus (HIV) type 1 other than subtype B (Western), the predominant North American subtype with a unique GPGR genetic sequence in the V3 loop, viruses from 22 HIV-infected adults were serotyped and subtyped. Twenty patients had subtype B (Western), of whom 15 had serotype B (Western), 3 had serotype A/C, 1 had serotype B (Thai), and 1 had a nontypeable serotype. Two had subtype A, both serotype A/C. Both subtype A-infected patients, only 1 of whom had been outside the United States, reported sex with persons traveling abroad, suggesting possible acquisition in the United States. Because US residents are infected with non-subtype B (Western) strains, US surveillance for HIV-1 diversity is needed to elucidate subtype-specific transmission patterns and pathogenesis and to guide evaluation and development of HIV diagnostic tests and vaccines.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Adolescent
  • Adult
  • DNA, Viral / analysis
  • DNA, Viral / genetics
  • Female
  • Genetic Variation
  • HIV Envelope Protein gp120 / genetics
  • HIV Infections / epidemiology*
  • HIV Infections / virology*
  • HIV-1 / classification
  • HIV-1 / genetics*
  • HIV-1 / immunology*
  • Humans
  • Male
  • Molecular Epidemiology
  • New York / epidemiology
  • North America / epidemiology
  • Peptide Fragments / genetics
  • Phylogeny
  • Sentinel Surveillance
  • Seroepidemiologic Studies
  • Serotyping


  • DNA, Viral
  • HIV Envelope Protein gp120
  • HIV envelope protein gp120 (305-321)
  • Peptide Fragments