"We (India), like South Africa, have a huge naturally acquired immunity... That is what I think India's trump card is. More than 80% have acquired immunity through infection; plus the 140 crore doses of vaccine," says Dr Jayaprakash Muliyil, Chairperson of the Scientific Advisory Committee of the National Institute of Epidemiology, on how India is "in a great shape to face this Omicron" variant of the COVID-19 virus.