The deadly Ebola outbreak that began in Congo in May is outpacing efforts to contain it, spreading to two other regions of Africa and taking advantage of gaps in surveillance.
The disease is caused by the rare Bundibugyo virus, for which there is no approved vaccine or treatment. More than 9,700 people have been infected, nearly half of whom have died, making it the deadliest Ebola outbreak in Congo’s history and the fastest-growing in the world.
