Jonas Salk invented and started testing the polio vaccine in 1952. At the time, polio was one of the world’s most feared diseases. That year a polio epidemic had infected 58 000 people in the US alone, mostly children. During the first stage of testing on human volunteers, Salk tested the vaccine on himself, his […] Read More
Looking forward to seeing you at AfricaCom 2017, Cape Town. November 7-9. Read More