Emergence of Complex and Diverse CRF02-AG/CRF06-cpx Recombinant HIV Type 1 Strains in Niger, West Africa

Saïdou Mamadou, Nicole Vidal, Céline Montavon, Aminata Ben, Ali Djibo, Sanata Rabiou, Garba Soga, Éric Delaporte, Souleymane Mboup, Martine Peeters

AIDS Research and Human Retroviruses · 2003 · 34 citations · 16 references

Concepts

Abstract

On the basis of partial env and gag subtyping, we documented that the majority of HIV-1 strains circulating in Niger were CRF02-AG (54.3%) or CRF06-cpx (18.1%) and that 9% of the samples were possible recombinants between CRF02 and CRF06. To determine in more detail the precise structure of these viruses we sequenced the full-length genomes for three such strains (97NE-003, 00NE-036, and 00NE-095). From the bootscan and phylogenetic tree analysis it is evident that the new viruses are the result of recombination events between CRF02-AG and CRF06-cpx strains. Importantly, each virus had a different complex recombinant structure with multiple breakpoints, leading to viruses with complex mosaic patterns.

References

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