Geneva, 22 January 2016 - El Niño is a warming of the central to eastern tropical Pacific Ocean which affects rainfall patterns and temperatures in many parts of the world but most intensely in the tropical regions of Africa, Asia-Pacific, and Latin America which are particularly vulnerable to natural hazards. Typically, some places receive much more rain than normal while others receive much less.

“From Ethiopia to Haiti to Papua New Guinea, we are seeing the damage from El Niño, and we believe the impact on public health is likely to continue throughout 2016, even after El Niño winds down,” said Dr Richard Brennan, Director of WHO's Emergency Risk Management & Humanitarian Response Department. “To prevent unnecessary deaths and illnesses, governments must invest now in strengthening their preparedness and response efforts.”