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Following Measles Outbreaks, Officials Grow Wary of Renewed Threat

Older Americans Should Get Another Covid Shot This Spring, Panel Says

Europe Faces a Measles Outbreak

Florida Health Official Calls for Halt to Covid Vaccines

Why Haven’t More Older Adults Gotten the R.S.V. Vaccine?

Climate Change Drives New Cases of Malaria, Complicating Efforts to Fight the Disease

What to Know About Dengue Fever as Cases Spread to New Places

Feeling Terrible After Your Covid Shot? Then It’s Probably Working.

U.S. Vaccine Program Now Flush With Cash but Short on Key Details

Jynneos Vaccine Offers Protection Against Mpox, New Studies Confirm

One Dose of HPV Vaccine Prevents Infection for at Least Three Years

AstraZeneca’s Covid Vaccine May Have Posed a Higher Heart Risk for Young Women, Study Shows

For Many Older Americans, the Pandemic Is Not Over

Vaccine Makers Kept $1.4 Billion in Prepayments for Canceled Covid Shots for the World’s Poor

Scientists Are Gaining on R.S.V., a Persistent Threat to Children

Cholera Outbreaks Surge Worldwide, Following Floods, Droughts and Wars

After Giving Up on Cancer Vaccines, Doctors Start to Find Hope

U.S. Health Officials Urge Vigilance as Ebola Spreads in Uganda

Was I Vaccinated Against Polio? Young Adults Wonder.

Why a Century-Old Vaccine Could Be the Next Weapon Against Viruses