17:06BBC OS2020/06/23 16:06 GMT: Coronavirus conversations: What we've learntBBC World Service Duration: 53 minutes Tue 23rd Jun 2020, 17:06 on BBC World Service West and Central AfricaFive health experts discuss how far we've come in our knowledge of Covid-19 Show more GenresNewsFormatsDiscussion & TalkBrandBBC OS Source: BBC Online