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.
The virus was isolated in 1983 and was ultimately named the human immunodeficiency virus (HIV HIV,human immunodeficiency virus, either of two closely related retroviruses that invade T-helper lymphocytes and are responsible for AIDS. There are two types of HIV: HIV-1 and HIV-2.