Vaccine protection of Pfizer, AstraZeneca wanes within 6 months: phone app study

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  LONDON, United Kingdom (AFP) — Protection from two doses of the Pfizer and AstraZeneca vaccines wanes within less than six months, according to a study of phone app data Wednesday, suggesting that booster shots may be needed to ensure prolonged coverage. The latest finding comes as several countries are rolling out additional jabs for the fully vaccinated, a move slammed by the World Health Organization as millions in the world have yet to receive […]