Bharat Biotech intranasal booster vaccine can be a game-changer if it provides mucosal immunity against COVID-19, said Dr Sanjay Rai, Professor for Community
A COVID-19 vaccine that can be produced locally in low- and middle-income countries is yielding promising results in early clinical trials, researchers say.Once the body has been "primed" by mRNA vaccines to recognize and attack the coronavirus, a booster containing purified versions of virus' spike protein that could be given intranasally would have many advantages, researchers believe.