A study conducted by Public Health England (PHE) has shown that either of the Pfizer or AstraZeneca COVID-19 vaccine brands are highly effective against the COVID-19 Indian strain. Two weeks after the administration of dose 2, the Pfizer vaccine was found to be 88% effective at stopping symptomatic disease and the AstraZeneca vaccine was 60% effective.
The effectiveness of only 1 dose of either brand was reduced to 33%, highlighting the importance of administering both doses.
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BBC News: Covid: Pfizer and AstraZeneca jabs work against Indian variant – study