Time of day may be important for how effective the COVID-19 vaccine is. A new study suggests middle of the day may be be best.

Individuals' tendency to plan for the future plays a surprising role in their vaccine hesitancy, a study finds.

Nursing home staff who worked the night shift had lower rates of COVID-19 testing and vaccination than day-shift staff, researchers report.

New research sheds light on microscopic training grounds that allow B cells to perfect the antibodies they use against viruses and bacteria.

People are more willing to get a COVID-19 vaccination when they are told about how many other people in their community plan to get one.

"This personalized immune therapy could be a game-changer for a disease this is so deadly and difficult to treat."

The sharp divergence in excess death rates that emerged in the post-vaccine period "is pretty striking… and the magnitudes are quite large."

Research finds it's possible to predict vaccine immunity a week after it was administered. That could speed up vaccine development.

New research shows that people who had a conspiracy mindset before the pandemic were more likely to believe fake info about COVID.

A new study explains why some people in Latino communities have avoided the COVID vaccine—and what can be done to reverse the trend.