Complete the sentences with the given words.
The пусто of Ebola was first medically recorded in 1976 near the Ebola River in what is now the Democratic Republic of the Congo. The Ebola virus causes an acute, serious illness which is often пусто if untreated. It belongs to the пусто family Filoviridae. These virus пусто cause hemorrhagic fever or heavy bleeding inside the body, and damages almost every organ. The Ebola virus may be пусто through blood, diarrhea, breast milk, saliva, sweat, urine, vomit and other contaminated body fl uids. Unprotected health care workers are especially пусто to the infection because they often deal with blood and bodily fluids. According to the WHO, the average пусто rate for a person infected with Ebola is 50 percent. Over the years Ebola has killed 11,315 in Liberia, Sierra Leone, Guinea and Nigeria. But the WHO admits the figures are not пусто due to the difficulty collecting the data.