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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
medicine
Distribution of HIV-1 variants in the Democratic Republic of Congo suggests increase of subtype C in Kinshasa between 1997 and 2002
Journal of Acquired Immune Deficiency Syndromes, Volume 40, No. 4, Year 2005
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Description
The Democratic Republic of Congo (DRC) is characterized by low and stable HIV prevalences and high HIV-1 genetic diversity and is most probably the epicenter of HIV-1 group M. Our major goal was to study the distribution of HIV-1 variants over a 5-year period against a background of political instability and civil war. A total of 288 HIV-1-positive samples collected in 2002 from sentinel population groups in an HIV serosurveillance study performed in 4 cities (Kinshasa [capital city], Mbuji-Mayi [south], Lubumbashi [southeast], and Kisangani [northeast]) were genetically characterized by sequencing and phylogenetic analysis of the V3-V5 env region. The results were compared with those obtained in 1997. Similarly, as in 1997, an extremely high genetic diversity of HIV-1 strains overall and a heterogeneous geographic distribution were seen in 2002. All subtypes and several circulating recombinant forms were present, high intrasubtype diversity was observed, and 5.6% of the samples could not be classified. In each geographic region of the DRC, the genetic diversity was significantly higher than in neighboring countries. Comparison of subtype distribution in similar population groups in Kinshasa in 1997 and 2002 revealed an overall increase of subtype C in Kinshasa from 2.1% to 9.7% and, more precisely, from 0% to 18.9% in female sex workers (P = 0.013). Genetic characterization of HIV-positive samples from sentinel surveys adds significant additional information on new trends in the HIV epidemic. These changes could have implications regarding the spread of HIV infection in the DRC as well on vaccine and/or treatment strategies. Copyright © 2005 by Lippincott Williams & Wilkins.
Authors & Co-Authors
Vidal, Nicole
France, Montpellier
Ird Centre de Montpellier
Mulanga, Claire
France, Montpellier
Ird Centre de Montpellier
Bazepeo, Samuel Edidi
Congo
Laboratoire du Pnls
Mwamba, Jeanne Kasali
Congo
Laboratoire du Programme National de Lutte Contre le Sida Pnls
Tshimpaka, Jean Willy
Congo
Laboratoire du Pnls
Kashi, Mulowayi
Congo
Laboratoire de L'hôpital Dipumba
Mama, Nicaise
Congo
Laboratoire du Pnls
Laurent, Christian
France, Montpellier
Ird Centre de Montpellier
Lepira, François Bompeka
Congo
Pnls
Delaporte, Éric
France, Montpellier
Ird Centre de Montpellier
Peeters, Martine F.
France, Montpellier
Ird Centre de Montpellier
Statistics
Citations: 81
Authors: 11
Affiliations: 5
Identifiers
Doi:
10.1097/01.qai.0000159670.18326.94
ISSN:
15254135
Research Areas
Genetics And Genomics
Infectious Diseases
Study Design
Cross Sectional Study
Study Locations
Congo
Participants Gender
Female