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 origin of AIDS has presented numerous puzzles to scientists since the first recognized cases appeared in the early 1980s. Until 1984 its cause was the subject of fierce debate.hey concluded that the origin of the HIV isolate discovered by Gallo was the same as that discovered by Montagnier. Today it is generally agreed that Montagnierâs group was the first to identify HIV, although Galloâs group insists it contributed significantly to demonstrating that it causes AIDS.