Two immunologists say an intranasal Covid vaccine can elicit an immune response at the site of infection – the respiratory tract. Intranasal vaccination, which is administered through the nose, is also needle-free, meaning that more people may be willing to get vaccinated. And the fact that they're administered without needles is one of the great advantages of intranasal vaccines, said the authors. Few intranasal vaccines in trialsThere are also two additional layers of protection that an intranasal vaccine can give over the intramuscular vaccine, said the researchers. In their viewpoint, they also go on to detail the individual advantages and challenges of each of the intranasal vaccine candidates.

Source: News 24 July 30, 2021 03:33 UTC