A third Covid wave in India can be delayed and it may be less severe than the first two waves if Covid-appropriate behaviour is followed and the pace of vaccination is increased, AIIMS chief Dr Randeep Guleria told NDTV this morning. A shortage of hospital beds and medical supplies in the country at the peak of second wave had caught global attention. While the daily cases have dropped, a spike in future may be inevitable, Dr Guleria agreed, as he referred to the fourth sero survey released earlier this week. About 40 crore people in the country are still vulnerable, the sero survey showed, highlighting that about 67 per cent of India's population has developed antibodies