Brazil. 1  Campestre, Alagoas. 2  Campestre, Minas Gerais. 3  Campestre da Serra, Rio Grande do Sul.  Campestre de GoiÃ¡s, 1  GoiÃ¡s. Campestre do MaranhÃ£o, MaranhÃ£o.  Campestre do Menino Deus, Santa Maria, Rio Grande do 1  Sul. SÃ£o JosÃ© do Campestre, Rio Grande do  Norte.
Formal tracking (surveillance) of AIDS cases began that year in the United States. In 1983, scientists discovered the virus that causes AIDS. The virus was at first named HTLV-III/LAV (human T-cell lymphotropic virus-type III/lymphadenopathy-associated virus) by an international scientific committee.This name was later changed to HIV (human immunodeficiency virus).ormal tracking (surveillance) of AIDS cases began that year in the United States. In 1983, scientists discovered the virus that causes AIDS. The virus was at first named HTLV-III/LAV (human T-cell lymphotropic virus-type III/lymphadenopathy-associated virus) by an international scientific committee.
The majority of HIV researchers agree that HIV evolved at some point from the closely related Simian immunodeficiency virus (SIV), and that SIV or HIV (post mutation) was transferred from non-human primates to humans in the recent past (as a type of zoonosis).he authors proposed that HIV-1 originated in the area of French Equatorial Africa in the early 20th century (when the colonial abuses and forced labor were at their peak). Later researches proved these predictions mostly correct: HIV-1 groups M and O started to spread in humans in late 19thâearly 20th century.