Molecular confirmation of HIV-1 and HIV-2 coinfections among initially serologically dually-reactive samples from patients living in West Africa. - Archive ouverte HAL
Article Dans Une Revue PLoS ONE Année : 2023

Molecular confirmation of HIV-1 and HIV-2 coinfections among initially serologically dually-reactive samples from patients living in West Africa.

Boris K Tchounga
  • Fonction : Auteur
Mélanie Bertine
  • Fonction : Auteur
Florence Damond
  • Fonction : Auteur
Valentine Marie Ferré
  • Fonction : Auteur
André Inwoley
  • Fonction : Auteur
Simon P Boni
  • Fonction : Auteur
Alice Moisan
  • Fonction : Auteur
Jean-Christophe Plantier
Diane Descamps
  • Fonction : Auteur
Charlotte Charpentier
  • Fonction : Auteur

Résumé

This study aimed to confirm the co-infection with HIV-1 and HIV-2, among West African patients using in-house HIV type/group enzyme-immuno assays and molecular diagnosis. A cross-sectional survey was conducted from April 2016 to October 2017 in the biggest HIV clinics of Côte d'Ivoire and Burkina Faso. A first serological confirmation was done in the referral laboratory using an in-house, indirect immuno-enzymatic essay allowing the qualitative detection of both HIV-1 and HIV-2 antibodies. In order to separately detect anti-HIV-1 and anti-HIV-2 antibodies, a type/group specific enzyme-immuno assay (HIV-GSEIA) was used. To confirm the co-infections, HIV-1 and HIV-2 DNA-qualitative PCR assays were performed. A total of 91 patients were enrolled in the study and provided blood sample for HIV type confirmatory testing including 13 (14.3%) HIV-2 mono-reactive and 78 (85.7%) HIV-1/HIV-2 dually-reactive based on the HIV testing National Algorithms. The first serological ELISA confirmatory test performed showed that 80 (78.9%) of the 91 participants were dually-reactive. The HIV-GSEIA performed on these 80 serum samples retrieve one 61 HIV-1/HIV-2 dually-reactive samples. HIV-1 and HIV-2 DNA PCR were performed on 54 of the 61 HIV-1/HIV-2 dually-reactive samples and 46 out of 61 (75.4%) samples were found HIV-1/HIV-2 coinfected. The contribution of type/group specific enzyme-immuno assay to accurately identify HIV-1/HIV-2 coinfections remain suboptimal, emphasizing the need for molecular diagnosis platforms in West Africa, to avail HIV DNA PCR test for the confirmation of HIV-1/HIV-2 co-infections.
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hal-04228561 , version 1 (04-10-2023)

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Boris K Tchounga, Mélanie Bertine, Florence Damond, Valentine Marie Ferré, André Inwoley, et al.. Molecular confirmation of HIV-1 and HIV-2 coinfections among initially serologically dually-reactive samples from patients living in West Africa.. PLoS ONE, 2023, 18 (3), pp.e0283602. ⟨10.1371/journal.pone.0283602⟩. ⟨hal-04228561⟩

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