Omicron symptoms mild so far, says South African doctor who spotted it

Dr Angelique Coetzee, the South African doctor who first spotted the new Covid variant Omicron, says the patients seen so far have had "extremely mild symptoms" - but more time is needed before we know the seriousness of the disease for vulnerable people.

Watch her tell the BBC's Andrew Marr how patients in South Africa have told her they've been feeling.