of ecosystems to deliver services can be assessed by a variety of qualitative. and quantitative methods. An assessment of the condition of ecosystems, the provision of services, and. their relation to human well-being requires an integrated approach.
First proof of an human infected by HIV : 1959 Leopoldville, Congo. EVIDENCE FOR HUMAN INFECTION WITH AN HTLV III/LAV-LIKE VIRUS IN CENTRAL AFRICA, 1959 (Lancet-1986) (HTLVIII/LAV-like virus is the old name for HIV: HTLV-III) Genetic studies about HIV now estimates that HIV-1 appears on humans in Africa, probably few years before 1959.
HIV was first isolated in France in 1983 by FranÃ§oise BarrÃ©-Sinoussi in the laboratory of Luc Montaignier as lymphadenopathy-associated virus (LAV), but strong evidence that it was the AIDS virus did not appear until 1984, when four papers were published in one issue of Science by Robert Gallo and colleagues, who designated their isolate HTLV-III. The virus was also isolated in San Francisco in 1984 by Jay Levy, who published his findings a few months later in 1984 and named his isolate ...