Spike in Covid cases: ‘Mask up, don’t delay your booster dose or drop guard’

Dr G C Khilnani, chairman of pulmonary, critical care, and sleep medicine at Delhi’s PSRI Hospital, says the latest Covid-19 spiral is being caused by more infectious sub-variants. But hybrid immunity and precaution vaccines can neutralise the severity of the disease even as you get repeat infections, he tells Anonna Dutt.