In West Africa, authorities are struggling to contain a record Ebola outbreak that has killed about 900 people and sickened more than 1,600. Sierra Leone, which has seen the most cases, has vowed to deploy hundreds of soldiers and police to clinics and homes to enforce the isolation of people who may be infected. In Liberia, many health clinics have shut down, and family members have reportedly been abandoning the corpses of infected loved ones on the street. The virus is spreading in Nigeria, with authorities now reporting a second fatality and at least five other cases. The second fatality was a nurse who helped treat a U.S. citizen who died in Nigeria last month after flying there from Liberia.