Ebola: Bumpy road to zero transmission

Paolo Conteh, Sierra Leone’s defence minister and head of the country’s National Ebola Response Centre, was an athlete who set a 400-metres national record in 1982 that remains unbeaten to this day. These days, Mr. Conteh uses a sporting analogy to explain the fight against the Ebola virus disease, which has resulted in more than 22,000 infections and over 9,000 deaths in the three most affected countries of Sierra Leone, Liberia and Guinea.