Coronavirus vaccine: How nasal vaccines will be administered and why it can defeat delta variant

The emergence of COVID-19 variants has posed a new challenge in front of the medical community to look for more efficient vaccines to minimise the risk of infection. The vaccines currently being administered across the globe have been found to be less effective on the variants, forcing several vaccine developers to look for stronger versions. Of all the vaccines being tried and tested, a nasal vaccine shot developed by Hyderabad-based Bharat Biotech, the makers behind Covaxin is considered to be a game-changer, if approved after clinical trials.