Omicron variant is vaccine inequality wake-up call, says South Africa's President Ramaphosa – video

South Africa's president, Cyril Ramaphosa, has expressed disappointment at countries that have imposed travel bans on southern African countries after the emergence of a new Covid-19 variant.

Omicron, named a 'variant of concern' by the World Health Organization on Friday, saw its first cases in South Africa, Botswana and Hong Kong and is potentially more contagious than previous variants, although experts do not know yet if it will cause more severe illness