Xuenou > Trending > Pfizer says tweaked COVID-19 shots boost omicron protection
Pfizer says tweaked COVID-19 shots boost omicron protection
Pfizer says tweaking its COVID-19 vaccine to better target the omicron variant is safe and boosts protection

Pfizer says tweaked COVID-19 shots boost omicron protection

Pfizer says tweaking its COVID-19 vaccine to better target the omicron variant is safe and boosts protection