vaccines from Moderna and Pfizer. Meanwhile last week, World Health Organization (WHO) said that the modified coronavirus vaccine can be administered as a booster dose to broaden immunity The variant-adapted vaccine may benefit those who have already received the primary series of shots, the agency's panel on COVID-19 Vaccine Composition said, it added.
The vaccines could be considered for use globally by the agency once they get emergency use authorization or an approval by a stringent national regulatory authority. (With inputs from agencies) .