FILE PHOTO: Mike Ryan, Executive Director of the World Health Organisation (WHO) attends a news conference on the Ebola outbreak in the Democratic Republic of Congo at the United Nations in Geneva, Switzerland May 3, 2019. REUTERS/Denis Balibouse
FILE PHOTO: Mike Ryan, Executive Director of the World Health Organisation (WHO) attends a news conference on the Ebola outbreak in the Democratic Republic of Congo at the United Nations in Geneva, Switzerland May 3, 2019. REUTERS/Denis Balibouse