Two Pfizer, AstraZeneca doses work against Delta, study says

Two Pfizer, AstraZeneca doses work against Delta, study says

By Excelsio Media on July 22, 2021 Also in covid-19, vaccine

Two doses of Pfizer or AstraZeneca's COVID-19 vaccine are nearly as effective against the highly transmissible Delta coronavirus variant as they are against the previously dominant Alpha variant, a study shows.

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