The Pfizer-BioNtech COVID-19 vaccine may require a third dose to work more effectively against the coronavirus (Covid-19). The third Covid-19 shot is also expected to provide better protection against the beta variant. American pharmaceutical company Pfizer-BioNtech is trying to get approval for the third dose. The company claims that a third dose may be needed to beat Corona. The company will try to get approval in view of the interim trial data, which showed that the third dose can increase antibody levels by five to ten times compared to the first two doses. In fact, this third Covid-19 dose is