Global cholera surge likely accelerated by climate change, warns WHO

UN news
Dec 19, 2022

Global cholera surge likely accelerated by climate change, warns WHO

Climate change has driven an “unprecedented” number of larger and more deadly cholera outbreaks around the world this year, the UN health agency, WHO, said on Friday.


“The map is under threat (from cholera) everywhere,” said Dr. Philippe Barboza, from the World Health Organization, speaking in Geneva, via Zoom.

Available data points to cases of infection in around 30 countries, whereas in the previous five years, fewer than 20 countries reported infections, on average.

Reversing recent successes

“The situation is quite unprecedented, for not only we are seeing more outbreaks, but these outbreaks are larger and more deadly than the ones we have seen in past years,” said Dr. Barboza, WHO Team Lead for Cholera and Epidemic Diarrhoeal Diseases.

“This increasing number of cholera outbreaks is occurring after several years of regular reduction in the number of cases and deaths.”

Dr. Barboza explained that all the “usual factors” had played their part in the global uptick of cholera in 2022, not least conflict and mass displacement.