21:06Newshour05/07/2020 20:06 GMT: Scientists claim that coronavirus is airborneBBC World Service Duration: 53 minutes Sun 5th Jul 2020, 21:06 on BBC World Service East and Southern AfricaOpen letter says WHO underplaying risk of airborne spread of Covid-19. Show more GenresNewsFormatsMagazines & ReviewsBrandNewshour Source: BBC Online