http://www.bbc.com/news/health-35433856Strains of HIV are becoming resistant to an antiretroviral drug commonly used to prevent and fight the virus, research has suggested.
HIV was resistant to the drug Tenofovir in 60% of selected cases in some African countries, according to the study, which covered a 17-year period.
It seems Mother Nature is stepping in again and trying to save us from our misplaced altruism.