| iatrogenic transmission of human t cell lymphotropic virus type 1 and hepatitis c virus through parenteral treatment and chemoprophylaxis of sleeping sickness in colonial equatorial africa. | the simultaneous emergence of human immunodeficiency virus (hiv)-1 group m and hiv-2 into human populations, circa 1921-1940, is attributed to urbanization and changes in sexual behavior. we hypothesized that the initial dissemination of hiv-1, before sexual transmission predominated, was facilitated by the administration, via reusable syringes and needles, of parenteral drugs against tropical diseases. as proxies for highly lethal hiv-1, we investigated risk factors for hepatitis c virus (hcv) ... | 2010 | 20735238 |