Congo Ebola health workers protest unpaid wages, disrupting response as deaths top 1,800 AP NewsUnpaid wages and deadly risk: Why health workers are threatening to abandon the Ebola response CNNEbola virus behind massive outbreak in DRC could be mutating, officials say The GuardianWhy Congo’s Record Ebola Outbreak Is Becoming Deadlier Bloomberg.comExplainer: Why Congo's Ebola outbreak is spreading faster than previous epidemics Reuters