Your Health

The companies say a study of more than 10,000 volunteers showed a vaccine efficacy of 95% or greater for people receiving the booster.

A new Alzheimer's drug isn't reaching many patients. Doctors say reasons include its high cost, and lingering questions about its effectiveness.

Flus and colds could be more prevalent this year because they didn't spread as much last year due to pandemic restrictions. We answer questions about the flu vaccine and how to stay protected.

Based on the strength of the trial's results, Pfizer says it will ask the FDA for emergency use authorization rather than enroll more people for clinical trials.

A concussion can make it difficult to converse in a noisy room. Scientists say that's because the injury has impaired the brain's ability to process sounds.

Officials say the recall was prompted after a random sample tested positive for the organism listeria monocytogenes. No illnesses have been reported, the FDA says.

The open enrollment period to buy health insurance on HealthCare.gov starts now and runs through Jan. 15, 2022. Look for more options and expanded subsidies this year — and more help signing up.

How risky is attending a professional or college football game during this phase of the pandemic? Millions are doing so, mostly unmasked.

You've seen the headlines about COVID boosters. But what does it all mean for you? Here's how to sort through the science and figure out if and when you need a booster and which one to get.

Many Americans are now eligible for a COVID vaccine booster. Are you? Our quiz will help you figure it out.

CDC Director Rochelle Walensky also endorsed a mix-and-match approach to boosters that would be flexible for patients and health care providers.

A Lancet medical journal report finds that human-caused climate change is worsening human health in just about every measurable way. It calls for more urgent action from world leaders.