Ebola outbreak on track to be deadliest ever, WHO chief says BBCDeadly disease outbreak kills 2,000 as experts reveal what Americans should know Fox NewsCongo says 2,000 people have died in history’s fastest-growing Ebola outbreak AP NewsCongo Ebola death toll tops 2,000 as outbreak becomes fastest spreading on record CBS NewsNew transmission from animals likely caused Congo-Uganda Ebola outbreak, study says Reuters