Pfizer and AstraZeneca Covid-19 vaccine protection decreases


By AGENCY

Frontline workers and the elderly will experience decreased vaccine protection first as they were prioritised for Covid-19 vaccination worldwide. — AFP

Protection from two doses of the Pfizer/BioNTech and AstraZeneca/Oxford vaccines wanes within less than six months, according to a study of phone app data announced on Aug 25 (2021).

This suggests that booster shots may be needed to ensure prolonged coverage.

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