Health workers spray the body of a amputee suspected of dying from the Ebola virus with disinfectant, in a busy street in Monrovia, Liberia, Tuesday, Sept. 2, 2014.  Food in countries hit by Ebola is getting more expensive and will become scarcer because many farmers won't be able to access fields, a U.N. food agency warned Tuesday. An Ebola outbreak in West Africa has killed more than 1,500 people, and authorities have cordoned off entire towns in an effort to halt the virus' spread.  (AP Photo/Abbas Dulleh)

WHO: New Ebola fears mount in Nigeria

Officials in Nigeria had believed that Ebola was largely contained within Africa’s most populous country after a sick traveler from Liberia …