The Ebolavirus conjures up gruesome images of infected individuals with hemorrhages erupting all over the body. When the virus was first discovered during an outbreak in 1976 in Zaire (now the Democratic Republic of Congo), the extreme lethality of the virus assisted physicians in containing the spread of the disease. The symptoms would present early enough that emergency responders could easily separate and quarantine the infected from the healthy.
More recent Ebolavirus outbreaks, however, such as the Western African outbreak between 2014 and 2016, have been more difficult to contain because the disease did not present indications of infection as early in exposed individuals, where the predicted incubation time could be doubled from 1-21 days to 1-42 days post-exposure. And new findings indicated the persistence of the Ebolavirus in the sexual fluids of survivors, which suggested Ebolavirus could be further expanded into a sexually transmitted disease. Thus, infected persons could travel greater distances away from the initial point of contact with the virus and potentially spread the virus over a wider area.