PROFILE: Meet Onyema Ogbuagu, UNICAL graduate leading COVID-19 vaccine research in US Pfizer and BioNTech had announced that the first vaccine they developed against COVID-19 could prevent more than 90 percent of people from getting infected. The vaccine has been tested on 43,500 people in six countries and no safety concerns have been raised. Pfizer … Continue reading Biography Of Dr Onyema Ogbuagu: Pfizer COVID-19 Vaccine Researcher