A healthcare worker walks near a Ebola isolation unit wearing protective gear against the virus at Kenema Government Hospital, in Kenema that is in the Eastern Province around 300km, (186 miles), from the capital city of Freetown in Kenema, Sierra Leone, Tuesday, Aug. 12, 2014. The World Health Organization declared Tuesday, it is ethical for unproven drugs and vaccines to be used amid an unprecedented outbreak in West Africa, however it didnt address who should get the limited amount of drugs available and can not predict the result of using untested drugs. (AP Photo/ Michael Duff)
