Director general of the World Health Organisation (WHO), Dr Tedros Adhanom Ghebreyesus, says he has been receiving death threats and racist insults from people.
He said some personal attacks came from people in Taiwan a few months ago.
Ghebreyesus brushed off these personal attacks on Wednesday in a press conference but said a line was crossed when people insulted Africa.
He would have been alluding to rumours being circulated about vaccines being tested in Africa.
“Then I don’t tolerate [it], then I say people are crossing a line…we cannot tolerate that,” he said.
“When it’s personal, when it’s death threats, I didn’t care, I didn’t respond… I am a very proud black person.
“I assure you, we [as WHO] will do everything we can to serve humanity. We will do everything to help us have no regrets at all.”