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Pfizer says tweaked COVID-19 shots boost omicron protection
Pfizer says tweaked COVID-19 shots boost omicron protection
Pfizer announced Saturday that tweaking its COVID-19 vaccine to better target the omicron variant is safe and works — just days before regulators debate whether to offer Americans updated booster shots this fall. The vaccines currently used in the U.S. still offer strong protection against...
news.yahoo.com
LAURAN NEERGAARD...