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Title
Wild Mandrillus sphinx are carriers of two types of lentivirus
Author(s)
Souquiere, S; Bibollet-Ruche, F; Robertson, DL; Makuwa, M; Apetrei, C; Onanga, R; Kornfeld, C; Plantier, JC; Gao, F; Abernethy, K; White, LJT; Karesh, W; Telfer, P; Wickings, EJ; Mauclere, P; Marx, PA; Barre-Sinoussi, F; Hahn, BH; Muller-Trutwin, MC; Simon, F
Published
2001
Publisher
Journal of Virology
Abstract
Mandrillus sphinx, a large primate living in Cameroon and Gabon and belonging to the Papionini tribe, was reported to be infected by a simian immunodeficiency virus (SIV) (SIVmndGBI) as early as 1988, Here, we have identified a second, highly divergent SIVmnd (designated SIVmnd-2), Genomic organization differs between the two viral types; SIVmnd-2 has the additional vpx gene, Like other SIVs naturally infecting the Papionini tribe (SIVsm and SIVrcm) and in contrast to the other SIVmnd type there designated SIVmnd-1), which is more closely related to SIVs infecting I'hoest (Cercopithecus Ihoesti Ihoesti) and sun-tailed (Cercopithecus Ihoesti solatus) monkeys. Importantly, our epidemiological studies indicate a high prevalence of both types of SIVmnd; all 10 sexually mature wild-living monkeys and 3 out of 17 wild-born juveniles tested were infected. The geographic distribution of SIVmnd seems to be distinct for the two types: SIVmnd-1 viruses were exclusively identified in mandrills from central and southern Gabon, whereas SIVmnd-2 viruses were identified in monkeys from northern and western Gabon, as well as in Cameroon, SIVmnd-2 full-length sequence analysis, together with analysis of partial sequences from SIVmnd-1 and SIVmnd-2 from wild-born or wild-living mandrills, shows that the gag and pal regions of SIVmnd-2 are closest to those of SIVrcm, isolated from red-capped mangabeys (Cercocebus torquatus), while the env gene is closest to that of SIVmnd-1, pol and env sequence analyses of SIV from a related Papionini species, the drill (Mandrillus leucophaeus), shows a closer relationship of SIVdrl to SIVmnd-2 than to SIVmnd-1, Epidemiological surveys of human immunodeficiency virus revealed a case in Cameroon of a human infected by a virus serologically related to SIVmnd, raising the possibility that mandrills represent a viral reservoir for humans similar to sooty mangabeys in Western Africa and chimpanzees in Central Africa.
Keywords
SIMIAN IMMUNODEFICIENCY VIRUS; AFRICAN-GREEN MONKEYS; CERCOPITHECUS-LHOESTI; TANTALUS MONKEYS; SOOTY MANGABEY; SYKES MONKEYS; GROUP-O; SEQUENCE; RECOMBINANT; SIV
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PUB11432