HIV-2 is a separate immunodeficiency virus from HIV-1. Its animal host is the sooty mangabey monkey, which is native to a swathe of forest in west Africa stretching from Senegal to Ivory Coast. 7 мар. 2012 г.
Where did HIV-2 originated?
Seroprevalence data suggest that HIV-2 originated in Guinea-Bissau and that the virus's rapid spread in this state did not start until 1960–1970 (27). Because the sooty mangabey subspecies C.
What animal did the HIV virus come from?
In Africa, HIV–the virus that causes AIDS–had jumped from chimpanzees to humans sometime early in the 20th century. To date, the earliest known case of HIV-1 infection in human blood is from a sample taken in 1959 from a man who'd died in Kinshasa in what was then the Belgian Congo.
What is the likely source for human HIV-2?
A sooty mangabey origin of HIV-2 was first proposed in 1989 (Hirsch et al. 1989) and subsequently confirmed by demonstrating that humans in West Africa harbored HIV-2 strains that resembled locally circulating SIVsmm infections (Gao et al. 1992; Chen et al. 1996).
Is there a HIV-2?
HIV-2 is mainly present in West Africa, but it is slowly starting to appear in other regions, including the United States, Europe, and India. Though HIV-1 and HIV-2 are both retroviruses that can have similar effects on the human body, they are genetically distinct.
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