Cheikh Ibrahima Niang, a professor of medical and social anthropology at the Cheikh Anta Diop University in Dakar, Senegal, has researched anthropological aspects of a wide range of health issues.

In July 2014, WHO asked him to investigate community attitudes to Ebola virus disease. He led a team of anthropologists to Sierra Leone just as the outbreak exploded in the eastern part of that country. This is what he found.