Meet US based Nigerian doctor Onyema Ogbuagu who is part of Pfizer's team that beveloped COVID 19 vaccine

Ogbuagbu, graduated from the University of Calabar in 2003, migrated to the US and rose to become Associate Professor of Medicine and Infectious Disease Specialist at Yale University..

He was part of the team that helped pharmaceutical company, Pfizer, to develop the vaccine.

He is the son of a former Vice-Chancellor of Abia State University, Prof Stella Ogbuagu. He also has a twin brother who is an engineer.