Your Health

Live-tweeting your fever and body aches after your second shot is the ultimate humble-brag of 2021. But does it really matter to immunity if you have a strong reaction to the COVID-19 vaccine?

Their physical and emotional health had withered in the pandemic year. But reentry into post-vaccination life made for tricky choices, too.

As a doctor, I was eligible for the COVID-19 vaccine in December, but I also was pregnant, and there wasn't yet much data to inform my decision. What I needed was a different kind of information.

COVID-19 vaccines are highly effective but don't always provide perfect protection. Some vaccinated people later exposed to the virus still get sick. Why and how often that happens is under study.

The pandemic has made it harder to exercise and easier to gain weight and delay routine checkups, bad habits that can prime your body for heart disease. These tips can help you get back on track.

Researchers are reporting some progress in their search for drugs that tamp down the overwhelming immune reaction that can kill a patient with COVID-19.

A medical team in New York City says it has performed the first complete surgical transplant of a trachea. These kinds of transplants are one of the last big transplant challenges.

At an animal sanctuary in the Congo, young students are learning why the gentle, endangered apes known as bonobos should be seen as a national treasure.

Not only does the new research show the Moderna and Pfizer vaccines are effective at protecting pregnant people, it also found that antibodies were present in umbilical cord blood and breast milk.

The drug company says the problem involved one batch of a substance that goes into its coronavirus vaccine. But the contractor, Emergent BioSolutions, has a history of problems.

Pfizer says it will submit the clinical trial results "as soon as possible" to the U.S. Food and Drug Administration, and is hoping to start vaccinating children before the next school year.

One smart way of getting the vaccine to communities at high risk of COVID-19: Take it to places many patients already visit three times a week.