The Viral Insurgent: Ebola in Sierra Leone: Muller_Ebola_SierraLeone_09

A woman washes her hands with chlorinated water at a checkpoint on the road between Kenema and Freetown, Sierra Leone on Saturday, August 16, 2014. The government imposed an array of checkpoints along the road in a bid to quarantine areas affected by Ebola. (Pete Muller/Prime for the Washington Post)

A woman washes her hands with chlorinated water at a checkpoint on the road between Kenema and Freetown, Sierra Leone on Saturday, August 16, 2014. The government imposed an array of checkpoints along the road in a bid to quarantine areas affected by Ebola. (Pete Muller/Prime for the Washington Post)