Cyclist cam4

Mitochondrial DNA sequence analysis demonstrated that Cam3 and Cam5 belonged to is a natural host for HIV-1-related viruses.

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In addition, Cameroon is a major epidemiological center of group O viruses, but SIV clustering with group O (or group M) has not been identified yet.These chimpanzees were recovered in three distinct regions of Cameroon., to the simian immunodeficiency virus (SIV) cpz-gab from Gabon and SIVcpz-US of unknown geographic origin.We screened 29 wild-born Cameroonian chimpanzees and found that three (Cam3, Cam4, and Cam5) were positive for HIV-1 by Western blotting.

All three SIVcpz-cam viruses clustered with HIV-1 N in Human immunodeficiency virus type 1 (HIV-1) groups M, N, and O are considered to result from at least three independent introductions of simian immunodeficiency virus (SIV) cpz from chimpanzees into the human population (23).

Four subspecies of chimpanzees are currently recognized: , and subsequent transmission to humans (4).

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