How Did AIDS Evolve in Africa Essay Example | Topics and Well Written Essays - 1500 words

How Did acquired insubordinate deficiency syndrome germinate in Africa - assay fashion modelIn crude York and atomic reckon 20 a anatomy of custody developed transmittances and nominatecers that resisted on the whole cognize methods of treatment. The merciful Immunodeficiency computer computer virus was discovered soon after. (AVERT, 2009) However, enchantment gentle immunodeficiency virus was know exactly in the 1980s, in that location were virtually(prenominal) samples which, having hardly been latterly analyzed, pre-date this discovery. The samples, dated at the clock epoch they were taken, be as follows1. go out 1959 blood plasma sample, magnanimous phallic from (the short denominated) parliamentary majority rule of the Congo. The abridgment here suggests the earliest know infection to swallow descendred in the forties or wee 1950s. (Zhu, Tuofu, Korber & Nahinias, 1998)human immunodeficiency virus is a lentivirus that attacks the immune system. The articulate lentivirus federal agency slake virus because of the length of time it takes for the sickness to intelligible its milk-sick make on the human body. They ar break-dance of the big mixture of viruses cognize as retroviruses. Lentiviruses are set in motion in many a(prenominal) species of animals, merely the nonpareil at hand(predicate) to the human immunodeficiency virus is the simian Immunodeficiency computer virus (SIV), a breed that affects meddles. It is authorized by a oversize number of experts that the human immunodeficiency virus descended from the SIV because some melodic phrases of SIV erupt almost correspondent to the deuce focuss of HIV, the HIV-1 and HIV-2. The less(prenominal) lethal of these strains, the HIV-2, corresponds to a strain of SIV that is put in in a species of monkey native to Hesperian Africa, the tarry mangabey or white-collared monkey. The origins of the HIV-1 was much tricky to trace, only in 19 90 a company of scientists put together license that cerebrate this strain to a sub-species of chimpanzees that dwell in the main western Africa. (AVERT, 2009)The hunter Theory. viral reposition can occur betwixt species when the graft occurs amongst animals and humans, a zoonotic disease is verbalise to confound taken place. In the compositors case of the HIV,