<prompt> 1 he can,ganisni dentiiied in the year:1983197619941969  <response>: Ans. a. 1983 In 1983, Luc Montagnier and colleagues from the Pasteur Institute, Paris, isolated a retrovirus from a West African patient with persistent generalized lymphadenopathy, which is a manifestation of AIDS, and called it lymphadenopathy associated virus LAV. It produced lytic infection in fresh peripheral blood lymphocytes but could not be established in permanent cell lines. In 1984, Robe Gallo and colleagues from the National Institute of Health, USA, repoed isolation of a retrovirus from AIDS patients and called it human T-cell lymphotropic virus-HI HTLV-I11. Other similar isolates were repoed from AIDS cases under different names. To resolve this nomenclatural confusion, the International Committee on Virus Nomenclature in 1986 decided on the generic name human immunodeficiency virus HIV for these viruses. Human Immunodeficiency Virus HIV The first indication of a new syndrome came in the summer of 1981, with repos from New York and Loss Angeles USA of a sudden unexplained outbreak of two very rare diseases-Kaposis sarcoma and Pneumocystis carinii pneumonia now pneumocystis jiroveci pneumonia in young adults who were homosexuals or addicted to injected narcotics. They appeared to have lost their immune competence, rendering them vulnerable to overwhelming and fatal infections with relatively avirulent micro-organisms, as well as to lymphoid and other malignancies. This condition was given the name acquired immune deficiency syndrome AIDS. In 1983, Luc Montagnier and colleagues from the Pasteur Institute, Paris, isolated a retrovirus from a West African patient with persistent generalized lymphadenopathy, which is a manifestation of AIDS, and called it lymphadenopathy associated virus LAV. It produced lyric infection in fresh peripheral blood lymphocytes but could not be established in permanent cell lines. In 1984, Robe Gallo and colleagues from the National Institute of Health, USA, repoed isolation of a retrovirus from AIDS patients and called it human T-cell lymphotropic virus-DI HTLV-III. Other similar isolates were repoed from AIDS cases under different names. To resolve this nomenclatural confusion, the International Committee on Virus Nomenclature in 1986 decided on the generic name human immunodeficiency virus HIV for these viruses. 