Four weeks after Omicron was detected, NDTV interviews Dr Angelique Coetzee, the physician credited with detecting the new variant. Why is it that cases in South Africa are mild, while the UK prepares for a tidal wave? In both cases, a speedy rollout of boosters is key. In India, we delay the rollout of the booster shot. Also on the show, Professor Lawrence Young, virologist at the University of Warwick and Dr Shashank Joshi of the Maharashtra Covid task force.