The last known Ebola patient in Liberia has been discharged from a treatment center in Monrovia, potentially marking the end of an epidemic that according to the World Health Organization, claimed 4,117 victims in Liberia alone. On April 4 the epidemic will be considered officially over as long as no new cases emerge. The date was selected because it would mark 42 days (double Ebola’s 21 day incubation period) after the last known infection.
Even though the number of known Ebola cases in Liberia has dropped to zero, officials are warning people to remain cautious. Within Liberia, authorities are still monitoring roughly 100 people who may have been exposed to the virus. Furthermore, Sierra Leone and Guinea have seen a recent spike in the number of known cases — increasing in the last week of February from 99 to 132.