Pfizer expands pneumococcal vaccine push with new programs

Pfizer Inc. PFE on Wednesday reported positive Phase 2 data for its investigational 25-valent pneumococcal conjugate vaccine ...

Pfizer didn't say hantavirus is side effect of its COVID-19 vaccine, contrary to online claims

Those eager to discredit Pfizer's mRNA vaccine, which is safe and effective, exploited the cruise ship outbreak.

Pfizer Advances Pneumonia Vaccine After 15-Fold Antibody Response Data

New 25-strain Prevnar candidate moves into final-stage testing after strong infant trial results against severe pneumonia strain.

Fact Check: Hantavirus infection is not a confirmed side effect of Pfizer’s COVID-19 vaccine

The regulatory document also lists any medical event experienced by a person during the study period between December 2020, ...

Pfizer’s Broader Pneumococcal Vaccine Push Might Change The Case For Investing In Pfizer (PFE)

Earlier in May 2026, Pfizer reported positive Phase 2 results for its investigational 25‑valent pneumococcal conjugate ...