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Continue to ChatPfizer Covid-19 vaccine is equally effective for young and old, Israeli study finds https://fox21.news/pfizer-covid-19-vaccine-is-equally-effective-for-young-and-old-israeli-study-finds.html
Pfizer Covid-19 vaccine is equally effective for young and old, Israeli study finds https://fox21.news/pfizer-covid-19-vaccine-is-equally-effective-for-young-and-old-israeli-study-finds.html