"However, one should not lower their guard … Adopt a guarded approach in terms of following COVID-19-appropriate behaviour and implementing restrictive measures," he said. Dr Singh added that Delhi may have already achieved herd immunity, considering the massive number of cases seen during the second wave. After a devastating second wave of the coronavirus, people had started taking vaccination seriously. "The Delta variant of coronavirus was responsible for up to 60 per cent of the cases during the second wave. There is also a possibility that a new variant bypasses the immunity achieved through vaccination and previous infection.

Source: Mint July 25, 2021 10:52 UTC