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You asked, we answered: Is it safe to mix and match COVID-19 booster doses? | Nebraska Medicine Omaha, NE
European Commission - Vaccinate, vaccinate and boost! Evidence gathered by the European Medicines Agency and the European Centre for Disease Prevention and Control (ECDC) suggest that mRNA vaccines used as boosters 3
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How 'mix and match' COVID-19 booster shots work, according to an infectious disease expert | PBS NewsHour
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