AIIMS director Dr Randeep Guleria says allergic reactions to vaccines are common and happen to select individuals. Those with allergies should inform the healthcare providers in advance, but they are safe to receive the coronavirus vaccine, he said. On the…

AIIMS director Dr Randeep Guleria says the concept of herd immunity is flawed. The best way to achieve herd immunity from coronavirus is through a vaccine. The number of people getting herd immunity reaching 60-70 per cent may not happen…