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.
Finally on 31 March 1932 the name of the post office was officially changed to Lafayette, which has remained unchanged to this day. Lafayette was the tenth post office established in Contra Costa County. (See Salley, History of California Post Offices).