People whose partners have HIV must remember to take antiretroviral pills every single day or risk infection themselves.

But researchers have come up with a way to avoid that daily hassle – an injectable drug that patients would only have to receive twice a year.

What’s more, the...

Waning vaccine coverage has fueled a 20% spike in measles cases worldwide, with 10.3 million people struck by the preventable illness in 2023, health officials reported Wednesday.

"Inadequate immunization coverage globally is driving the surge in cases," of what was once a common childhood disease, the World Health Organization and the U.S. Centers for Disease Control and Prevention said ...

An experimental vaccine has shown promise in protecting against the sexually transmitted disease chlamydia, researchers report.

Lab mice given the vaccine were able to rapidly clear subsequent chlamydia infections, and were less likely to develop severe infecti...

Florida resident Joshua Walker isn’t concerned his health will take a hit from all the cakes, pies, cookies and candy that will tempt him during holiday gatherings.

That’s because he’s armed with a solid diet and exercise routine that will allow for a little indulgence.

“If Grandma made an apple pie that I’m just looking at and it’s speaking my na...

In a move guaranteed to alarm many, President-elect Donald Trump has chosen Robert F. Kennedy Jr., a vocal opponent of vaccines and other tenets of mainstream health care, to head the massive U.S. Department of Health and Human Services (HHS).

The department encompasses numerous key agencies, including the U.S. Centers for Disease Control and Prevention, the U.S. Food and Drug Administrat...

More than a third of Americans continue to express mistrust in the science behind COVID vaccines, a new study finds.

This level of mistrust has remained relatively consistent, expressed by 36% of people in 2021, 33% in 2022 and 36% in 2023.

People who lost a family member or close friend to CO...

Some Americans should get more than one shot of the updated COVID vaccines because their age or certain health conditions make them more vulnerable to severe infections, U.S. health officials advised this week.

Six months after their first shot, people 65 and older and those who are immunocompromised should receive a second dose of the vaccines that rolled out this fall, according to...

The recommended first age at which Americans should get the pneumococcal vaccine has been lowered from 65 to 50, the U.S. Centers for Disease Control and Prevention announced Wednesday.

"Lowering the age for pneumococcal vaccination gives more adults the opportunity to protect themselves from pneumococcal disease at the age when risk of infection substantially increases," CDC director

A global real-world study of the vaccine for respiratory syncytial virus (RSV) finds it offers folks aged 60 and over 80% protection against severe illness and/or hospitalization.

With U.S. vaccination rates falling, "I encourage older adults to follow CDC guidance and get vaccinated for RSV as we enter this year’s and every year’s respiratory disease season," said study co-au...

Folks who want solid protection during the cold and flu season should get the influenza vaccine now, the U.S. Food and Drug Administration says.

The ideal time to get the flu vaccine is by the end of October, the FDA said in a