The 2025-26 Pfizer COVID-19 vaccine is about 57% effective against emergency department/urgent care (ED/UC) visits and 54% effective against outpatient visits among adults roughly 4 weeks after ...

If you get the Pfizer mRNA vaccine, your body doesn’t get the virus. It gets instructions to make a harmless piece of the ...

Learn about the safety and effectiveness of COVID-19 vaccines for kids, the possible side effects, and the benefits of vaccination.

Add Yahoo as a preferred source to see more of our stories on Google. The Pfizer Covid vaccine increased the risk of heart problems for children sixfold in the first week of having the jab but led to ...

The fall COVID-19 vaccine season is starting slowly for Pfizer, with U.S. sales of its Comirnaty shots sinking 25% after federal regulators narrowed recommendations on who should get them. Anthropic ...

One panelist accused the F.D.A. of withholding data on potential harms. The advisers also are reviewing research on vaccines ...

COVID-19 vaccines for children between the ages of 5 and 11 could get the green light from the US Food and Drug Administration sometime this fall, Dr. Anthony Fauci said. "If you look at the studies ...

America’s drug safety agency declined to review a next-gen flu vaccine that uses the same tech as the coronavirus shots ...

KALAMAZOO, Mich. -- Even though U.S. health officials authorized the emergency use of Pfizer's COVID-19 vaccine, getting the pandemic under control will take time and effort. One of the biggest steps ...

The vaccine maker’s shots involve the successful Covid vaccines’ RNA technology. Health Secretary Robert F. Kennedy Jr. has ...