In this May 22, 2018, photo, 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. (Mark Naftalin/UNICEF via AP)
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