any-to-any architecture that has virtual connections in a switched environment. AT&T defines VPLS as any-to-any Ethernet that can be either metro or long haul. Since Ethernet is an integral part of VPLS, it is important to understand how Ethernet works and can be used within an enterprise network. Ethernet
HIV in America: New York City Was First 'Hub'. Also, the surprising true story of 'Patient Zero'. MedpageToday. The virus that eventually brought HIV/AIDS to light probably arrived in the U.S. in 1970 or 1971, immigrating from Africa though Haiti, researchers said.
(How he became infected is not known.) Genetic analysis of this blood sample suggested that HIV-1 may have stemmed from a single virus in the late 1940s or early 1950s. We know that the virus has existed in the United States since at least the mid-to late 1970s.