iNCOVACC, nasal vaccine developed by Bharat Biotech, cannot be administered to those who have taken a precautionary or booster dose. iNCOVACC, was introduced on the CoWIN app last week. “The vaccine is available for those who have not yet taken a precautionary dose,” said Dr NK Arora, Chairman of the Covid-19 working group of NTAGI. Watch the video to know about the price of the nasal vaccine and more.