Abstract: | Abstract: The lineage of HIV-2-like viruses was studied in feral sooty mangabeys (SMs) by serological and genetic methods. Four feral sooty mangabeys were positive for simian immunodeficiency virus (SIV) antibodies and a new isolate, SIVsmSL92a, was obtained. Genetic analysis of gag genes showed that SIVsmSL92a was highly diverse and a distinct sequence subtype within the SIVsm/HIV-2 family. The results showed that SIVsm is the most diverse group of SIVs found thus far in a single monkey species. |