South African epidemiologist says he's 'quite worried' about new Covid variant

Salim Abdool Karim, an epidemiologist and former head of South Africa's Ministerial Advisory Committee on Covid-19, tells CNN's Becky Anderson why he's worried about the new Omicron Covid variant.

source https://www.cnn.com/videos/health/2021/11/26/south-african-epidemiologist-karim-covid-b-1-1529-variant-intl-ctw-vpx.cnn