HIV types, groups, subtypes and recombinant forms: errors in replication, selection pressure and quasispecies.

Abstract excerpt

HIV-1 is a chimpanzee virus which was transmitted to humans by several zoonotic events resulting in infection with HIV-1 groups M-P, and in parallel transmission events from sooty mangabey monkey viruses leading to infections with HIV-2 groups A-H. Both viruses have circulated in the human population for about 80 years. In the infected patient, HIV mutates, and by elimination of some of the viruses by the action...

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