Image provided by the United Nations Children's Fund (UNICEF) shows patients suffering from diarrhea and cholera being treated AT Hospital St-Antoine after the attack of Hurricane Matthew, in Jeremie, Haiti, on Oct. 10, 2016. The UN Office for the Coordination of Humanitarian Affairs (OCHA) warned on Tuesday that 1.4 million Haitians were in need of humanitarian aid, including cholera vaccines, following the passage of Hurricane Matthew last week. (Xinhua/UNICEF)