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Pfizer says its COVID-19 booster protects against the Omicron variant
Pfizer says COVID booster protects against omicron
Pfizer says its booster provides protection against Omicron
Pfizer says COVID booster offers protection against omicron
Pfizer says booster shots are needed to better protect against Omicron variant
Pfizer says COVID booster protects against Omicron
Pfizer says COVID-19 booster offers protection against omicron
News Wrap: Pfizer says booster offers protection against omicron variant
Pfizer says booster shot of COVID-19 vaccine protects against omicron
Pfizer says its COVID-19 booster protects against omicron
Pfizer says lab tests show COVID booster may offer protection against Omicron | ABC News
Pfizer Says COVID Booster Appears To Provide Significant Protection Against Omicron
