14:06Newshour23/11/2020 14:06 GMT: Covid-19: Oxford University vaccine is highly effectiveBBC World Service Duration: 53 minutes Mon 23rd Nov 2020, 14:06 on BBC World Service AustralasiaInterviews, news and analysis of the day’s global events. Show more GenresNewsFormatsMagazines & ReviewsBrandNewshour Source: BBC Online