19 potential COVID-19 vaccines currently in clinical trials-WHO
The World Health Organisation (WHO) says there are 19 potential COVID-19 vaccines currently in clinical trials globally. WHO Regional Office for Africa in Brazzaville, Congo, disclosed this on its official Twitter account @WHOAFRO. The WHO also said that here are nearly 150 COVID-19 vaccine candidates. “South Africa is the first country on the continent to […]











