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AstraZeneca, Pfizer vaccines effective against Delta COVID-19 variants-study

Published by Jessica Weisman-Pitts

Posted on June 23, 2021

· Last updated: January 21, 2026

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Medical worker administering AstraZeneca COVID-19 vaccine against Delta variant - Global Banking & Finance Review
A medical professional prepares an AstraZeneca COVID-19 vaccine dose at a vaccination center, highlighting its effectiveness against Delta variants, as discussed in the article about vaccine studies.
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