COVID-19 Vaccines in Phase 3 Clinical Trials, Says WHO Health COVID-19 Vaccines in Phase 3 Clinical Trials, Says WHO theaoneadmin August 4, 2020 Agency Report/ Dr Tedros Ghebreyesus, the Director-General, World Health Organisation (WHO), says a number of vaccines are... Read More Read more about COVID-19 Vaccines in Phase 3 Clinical Trials, Says WHO