- Hyderabad-based Bharat Biotech has said it would be manufacturing up to a billion doses of a single-dose intranasal Covid-19 vaccine in collaboration with the Washington University School of Medicine in St Louis, Missouri.
- Vaccines are delivered through different routes, with the most common being injectable shots delivered into the muscles (intramuscular) or the tissue just between the skin and the muscles (subcutaneous).
- Other routes of delivery, especially in some vaccines for infants, include administering the liquid solution orally instead of injecting. In the intranasal route, the vaccine is sprayed into the nostrils and inhaled.
SRC: IE