16:06BBC OS2021/03/10 16:06 GMT: Coronavirus conversations: Developing Pfizer's vaccineBBC World Service Duration: 53 minutes Wed 10th Mar 2021, 16:06 on BBC World Service East and Southern AfricaThe personal story of one of the team behind the Pfizer / BioNTech jab Show more GenresNewsFormatsDiscussion & TalkBrandBBC OS Source: BBC Online