(Bloomberg) -- Pfizer Inc. said a new version of its bestselling Prevnar vaccine may provide infants with better protection against common strains of pneumonia than currently available immunizations.

May 20 (Reuters) - Pfizer (PFE.N), opens new tab said on Wednesday its experimental pneumococcal vaccine showed significantly stronger immune response than its current shot, including up to 15-fold ...

Pfizer’s mRNA flu vaccine outperformed the standard flu shot in a Phase 3 clinical trial, according to results published Wednesday in the New England Journal of Medicine. The vaccine uses the same ...

Pfizer and BioNTech said Wednesday that initial lab tests show that the omicron variant partly escapes protection offered by the companies' two-dose regimen of their COVID-19 vaccine. However, those ...

The Food and Drug Administration has issued approval for a booster shot of Pfizer's COVID-19 vaccine for children as young as 12. The Pfizer vaccine is the first booster shot to receive emergency ...