Virus strains from two of these primate species, SIVsmm in sooty mangabeys and SIVcpz in chimpanzees, are believed to have crossed the species barrier into humans, resulting in HIV-2 and HIV-1, respectively.
642 Acres Lafayette, Boulder County, Colorado. $14,000,000. Conveniently located northeast of Boulder with direct access to the Denver corridor, this spectacular and spacious farm is situated on 642 acres.
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