Ebola death toll continues to rise

The Ebola outbreak, caused by a rare strain of the Bundibugyo virus, has ballooned into the fastest outbreak of the virus in history. The World Health Organization said this week that 80% of the confirmed cases are coming from unknown chains of transmission, meaning that the cases are likely emerging in communities where people aren’t receiving health care. That makes it harder to ensure burials – which can spread the disease even after a person has died – are following safety measures.