Liberia has finished treating its last Ebola patient, as the World Health Organization announced the country has gone a week without any new cases, for the first time in 10 months. Health officials warn the fight is not over, since a fresh outbreak could still erupt. Sierra Leone and Guinea, meanwhile, reported a combined total of 132 new Ebola cases last week. In total, the record outbreak has killed nearly 10,000 people and infected nearly 24,000.