In this May 22, 2018 photo provided by UNICEF, schoolchildren wash their hands to help contain the Ebola outbreak before entering a classroom in the north-western city of Mbandaka, in Congo. Congo's health ministry announced six new confirmed Ebola cases and two new suspected cases Tuesday as vaccinations entered a second day in an effort to contain the deadly virus in the city of more than 1 million. (Photo by Mark Naftalin/UNICEF via AP Photo)
