HIV/AIDS in the United States. The AIDS epidemic, caused by HIV (Human Immunodeficiency Virus), found its way to the United States as early as 1960, but was first noticed after doctors discovered clusters of Kaposi's sarcoma and pneumocystis pneumonia in young gay men in Los Angeles, New York City, and San Francisco in 1981.What was the original cause of AIDS?
The primary cause of HIV/AIDS is the result: of transmission of an infectious agent by another person by one or more of the following: saliva, air, cough, fecal-oral route, surfaces, blood, needles, blood transfusions, sexual contact, mother to fetus, etc.What is the origin of AIDS?
Research into the origins of AIDS and HIV has helped advance prevention and treatment. Doctors are not exactly sure when HIV originated, but they believe it developed from a type of chimpanzee virus in West Africa called the simian immunodeficiency virus (SIV).When did AIDS originate?
The first recognised cases of Aids occurred in America in the summer of 1981, and soon afterwards in Africa. In the beginning doctors did not know what caused this disease, and it was only in 1983 that scientists discovered that Aids is caused by a virus - now known as HIV-1. There are two viruses associated with Aids, namely HIV-1 and HIV-2.