Tedros Adhanom Ghebreyesus: WHO Director General 2018-

An interesting character who carved out a career as an Ethiopian politician before being elected WHO chief. He served as Health Minister then Foreign Minister in the Ethiopian Government from 2005-2016.

Credited with significant improvements to Ethiopia's overall health profile, he was also "accused ... of covering up three cholera epidemics in his home country, Ethiopia, when he was health minister." The accusations came during the campaign period for the top WHO spot in 2017.

"In an interview, Dr. Tedros ... denied covering up cholera. Outbreaks occurring in 2006, 2009 and 2011, he said, were only “acute watery diarrhea” in remote areas where laboratory testing “is difficult.”
W.H.O. officials have complained privately that Ethiopian officials are not telling the truth about these outbreaks. Testing for Vibrio cholerae bacteria, which cause cholera, is simple and takes less than two days.
During earlier outbreaks, various news organizations, including The Guardian and The Washington Post, reported that unnamed Ethiopian officials were pressuring aid agencies to avoid using the word “cholera” and not to report the number of people affected.
But cholera bacteria were found in stool samples tested by outside experts. As soon as severe diarrhea began appearing in neighboring countries, the cause was identified as cholera.

United Nations officials said more aid could have been delivered to Ethiopia had the truth been told."