[The Conversation Africa] Each year antimicrobial resistance - the ability of microbes to survive agents designed to kill them - claims more lives than malaria and HIV/Aids combined. Africa bears the brunt of this development, which thrives on inequality and poverty. Nadine Dreyer asked Tom Nyirenda, a research scientist with over 27 years' experience in infectious diseases, what health organisations on the continent are doing to fight this threat to medical progress.