Pfizer says booster dose of vaccine protects against omicron variant NBC NewsPfizer says booster dose of Covid vaccine neutralizes omicron variant CNBC TelevisionRadio Station WHMI 93.5 FM — Livingston County Michigan News, Weather, Traffic, Sports, School Updates, and the Best Classic Hit WHMIProtection against Omicron coronavirus variant improves with three vaccine doses, Pfizer says CNNWhat to watch today: Wall Street set for another rally as Pfizer booster shows promise on omicron CNBCView Full Coverage on Google News