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Two doses of Pfizer, AstraZeneca shots effective against Delta variant, study finds

July 22, 2021 BDNEWS, bdnews24.com - Home

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

from bdnews24.com - Home https://ift.tt/3kGxqEX

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