Sierra Leone’s Head Ebola Doctor Contracts the Virus The lead doctor fighting the deadly tropical virus Ebola in Sierra Leone has himself caught the disease. Sheik Umar Khan, a Sierra Leonean virologist credited with treating more than 100 Ebola victims, has been receiving treatment at a ward run by medical charity, Doctors without Borders. The 39-year-old was leading the fight to control an outbreak that has killed 206 people in the West African country. It is not immediately clear how Khan caught the virus. His colleagues say he was always meticulous with protection, wearing overalls, mask, gloves and special footwear. Source: ALJAZEERA