Pfizer says COVID booster offers protection against omicron

By , Special to the Daily Memphian Updated: December 08, 2021 10:44 AM CT | Published: December 08, 2021 6:44 AM CT

Pfizer says a booster dose of its COVID-19 vaccine may protect against the new Omicron variant even though the initial two doses appear significantly less effective.

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Pfizer COVID-19 COVID-19 vaccine COVID-19 booster

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