According to an email obtained by the Associated Press, the WHO's anti-coronavirus measures have not been enough to stop the spread of the virus among its staff.
The number of children sickened by measles in 2019 was the highest in 23 years, according to new data published by the World Health Organization and the US Centers for Disease Control and Prevention.
COVAX aims to make 2 billion doses of COVID-19 vaccine available by the end of next year, although rich countries are said to have reserved more than half of the world’s global capacity.
The announcement comes after no cases were reported for four years on the continent, with the last case detected in Nigeria.
According to the UN, 483 aid workers were subject to attacks last year, an 18 per cent rise on 2018 and the highest number ever recorded.
The pandemic continues to accelerate, a data tally has shown, and many countries are being forced to step up their prevention measures.