The Viral Insurgent: Ebola in Sierra Leone: Muller_Ebola_SierraLeone_10

Sierra Leonean soldiers man a checkpoint on the road from Freetown to Kenema on Thursday, August 21, 2014. Sierra Leone's police and military have established numerous checkpoints on roads leading into and out of Ebola-affected areas. Only trucks carrying essential goods and persons with government issued permission may cross the checkpoints.(Pete Muller/Prime for the Washington Post)

Sierra Leonean soldiers man a checkpoint on the road from Freetown to Kenema on Thursday, August 21, 2014. Sierra Leone's police and military have established numerous checkpoints on roads leading into and out of Ebola-affected areas. Only trucks carrying essential goods and persons with government issued permission may cross the checkpoints.(Pete Muller/Prime for the Washington Post)