Yale researchers have found clues as to why certain people experience adverse health effects after the COVID-19 vaccine, ...

In a small study, Yale researchers have found "differences in immune profiles" among those who have rare reaction to the ...

A small study on Covid vaccine safety has sparked an online tempest — and highlighted the conundrum faced by some scientists.

Department of Health and Human Services Secretary Robert F. Kennedy Jr. paused a $240 million contract to create a new coronavirus vaccine.

One of the last remaining Catholic colleges requiring coronavirus vaccines has dropped its mandate, and the other one appears ...

COVID-19 vaccines target emerging variants, offering improved protection. Learn about their effectiveness, timing, and safety ...

Scientists explored the differences in heart inflammation caused by COVID-19, anti-COVID-19 vaccines, and other viral ...

In this piece, we include reporting tips, how vaccine side effects are tracked in the U.S., and what research shows about the ...

Experts from Yale University have uncovered a new, concerning condition linked to the COVID-19 vaccines. Dubbed ...

React 19 co-chair Brianne Dressen discusses a study investigating the post-vaccination issues linked to the coronavirus vaccine.

A health district epidemiologist called it a “kick in the teeth” and “based on conspiracy and misinformation.” ...

Disagreements about what worked and what didn’t against the biggest public health disaster in modern times have yet to be ...