India's nasal vaccine cannot be given to those who have already taken a precaution or booster dose, the head of the country's vaccine task force said, according to a report by NDTV.
The nasal vaccine iNCOVACC was introduced on the CoWIN platform last week.
The nasal vaccine is to be used as the "first booster" according to Dr NK Arora, the Chairman of the Covid Working Group of National Technical Advisory Group on Immunisation (NTAGI).
NTAGI works on introducing new vaccines and strengthening the universal immunisation programe in India.
Asserting that CoWIN will not accept a fourth dose, Dr Arora