COVID-19 Vaccine Update: Bharat Biotech Gets DCGI Approval For Intranasal Booster Dose for Restricted Use
As per the vaccine manufacturer, the nasal route has excellent potential for vaccination due to the organised immune systems of the nasal mucosa. Thus, intranasal immunisation of ChAd-SARS-CoV-2-S can create an immune response in the nose, which is the point of entry for the virus -- thereby protecting against disease, infection, and transmission.