corona vaccine News

Study: 2 COVID vaccine doses much more effective than 1 against Delta

July 22, 2021 No Comments
Mary Van Beusekom | News Writer | CIDRAP News
Jul 22, 2021

Two doses of either Pfizer or AstraZeneca vaccine were 80% effective against the Delta COVID-19 variant.

Mary Van Beusekom | News Writer | CIDRAP News

Jul 22, 2021
Two doses of either Pfizer or AstraZeneca vaccine were 80% effective against the Delta COVID-19 variant.Read More

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