14:06Newshour22/12/2021 14:06 GMT: Scientists in South Africa assess how dangerous Omicron isBBC World Service Duration: 50 minutes Wed 22nd Dec 2021, 14:06 on BBC World Service Americas and the CaribbeanEarly data suggests hospital stays are shorter than in previous waves Show more GenresNewsFormatsMagazines & ReviewsBrandNewshour Source: BBC Online