<prompt> Pfupisa nyaya yacho: Kuongorora kutsva kunoratidza kuti AIDS yakabva kumakorira pamwe chete nemachimpanzi. Mapoka maviri emavhairasi mana anozivikanwa anokonzera chirwere chacho akaonekwa kuti anobva kumakudo makuru ane 98 muzana yeDNA yakafanana neyevanhu. Kwakanga kwazivikanwa kuti utachiona hwokushayikwa kwesimba rokudzivirira zvirwere mumhuka Simian immunodeficiency virus SIV - hunoenzana neHIV pamonkey - hwakanga hwapinda muvanhu huchibva kumachimpanzi, asi zvino kunoratidzika sokuti makorira muCameroon akaitawo basa rinokosha. Masayendisiti anoti kunzwisisa mavambo echirwere chacho kuchabatsira kufanotaura ngozi yokubuda kwechirwere chacho munguva yemberi. Masayendisiti akawana kuti AIDS ingave yakatanga nemapoka emagorilla omunzvimbo dzapasi dzokumadokero muCameroon, pamwe chete nemapoka emachimpanzi munyika yacho. Kubatana kwacho kwakaonekwa pashure pokunge vatsvakurudzi vaongorora tsvina yakaunganidzwa mumasango ari kure. Vakawana kuti mapoka eHIV-1 anozivikanwa seO uye P akabva kumapoka emagorilla okuchamhembe kwakadziva kumadokero. HIV-1 - utachiona hunokonzera AIDS - hwapfuura pakati pemarudzi kuti hutapurire vanhu kanenge kanokwana kana. Mamwe madzinza, M uye N, anozivikanwa kuti akatanga mumapoka echimpanzi akaparadzana nenzvimbo dziri kumaodzanyemba kweCameroon. Boka reM rakaita kuti pave nedenda reAIDS - richiparira vanhu vanopfuura mamiriyoni 40 munyika yose nokupararira muAfrica nomunyika yose. Masayendisiti akawana mapoka eHIV-1 anozivikanwa seO uye P akavamba mumapoka emakorira omunzvimbo dzapasi dzokumadokero. Mufananidzo womufananidzo wesero rine utachiona hweHIV uri kuratidzwa. Boka reN neP rakanyanyisa, rakawanikwa muvanhu vashomanana chete vanobva kuCameroon. Asi O - kunyange zvazvo isina kupararira uye yakapararira seM - yakatapurira vanhu vanenge 100 000 muWest Central Africa. Chikwata chacho chakaongorora tsvina yemapere emagorilla ekumadokero, ekumabvazuva, uye emumakomo muCameroon, Gabon, Democratic Republic of Congo, neUganda kuti vaone kana paiva neSIV - chirwere chinokonzera HIV. Bhuku idzva rinotaura kuti denda reAIDS rakatanga musango rinopisa riri kumaodzanyemba kwakadziva kumabvazuva kweCameroon muna 1908 uye kwete makore anopfuura 70 gare gare apo utachiona hwakatanga kuzivikanwa mukutanga kwama 1980. Nokuda kwe...  <response>: Masayendisiti akawana chirwere cheHIV chisati chavapo mumapere muCameroon. Utachiona hwakafanana nemarudzi maviri eHIV anozivikanwa seO uye P anowanikwa mumapere. Vasayendisiti vakanga vamboziva nezveutachiona uhwu mumapoka emashimpanzi chete. Nyanzvi dzinodavira kuti utachiona hwemonkey hwakasvetukira muvanhu vakahuvhima. 