A study by Epi-Phare published on Thursday addresses misinformation surrounding vaccines that have been widely distributed ...

Recent studies have shown that the effectiveness of Covid-19 vaccines is decreasing, though experts say the shots still work well. WSJ explains what the numbers mean and why they don’t tell the full ...

Vaccine experts said the memo was irresponsible and omits key details about how officials arrived at the conclusion.

NEW YORK, N.Y. – Pfizer Inc. on Monday released detailed analyses of myocarditis cases linked to its COVID-19 vaccine, ...

Pfizer (PFE) and BioNTech (BNTX) said in a statement: “COVID-19 has transitioned from a pandemic to an endemic disease. Even so, COVID-19 disease still hospitalizes hundreds of thousands of Americans ...

Vaccine maker Pfizer said Friday that trials of its vaccine in children ages 2 to 5 show that it did not provide the expected immunity in kids this age, and it is adding a third dose to the regimen.

WASHINGTON — U.S. regulators approved updated COVID-19 shots Wednesday but limited their use for many Americans — and removed one of the two vaccines available for young children. The new shots from ...

Pfizer Inc. (NYSE:PFE) and BioNTech SE (NASDAQ:BNTX) reported topline Phase 3 results for their LP.8.1-adapted monovalent COMIRNATY (2025-2026 Formula) in high-risk adults. Among 100 participants, the ...

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 ...