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.
County Government. Arvada is located primarily in Jefferson County, Colorado. Jefferson County is the largest county in Colorado with a population estimated at 535,000. General boundaries for the county are W. 120th Ave. on the north, Sheridan Blvd. on the east, and Pike National Forest to the south.