Mounting evidence points to a link between new-onset allergies and Long COVID, with mast cell activation syndrome as a ...

Female matriculants experience their largest increase in 4 years; men have an even higher increase for the third year in a row.

Add Yahoo as a preferred source to see more of our stories on Google. What are the most common COVID-19 symptoms doctors are seeing in October 2025? Read on to find out what to look out for, how to ...

Most of us now view COVID-19 as more of a nuisance than a danger, thanks to vaccines and past exposure to the virus—all of which have built up our immunity. But research suggests that multiple ...

Walensky is a professor at Harvard Medical School and served as the 19th director of the Centers for Disease Control and Prevention. Once clinical trials showed that Covid-19 vaccines were safe and ...

Thanksgiving week is typically one of the biggest travel periods of the year, but winter holidays like Christmas, Hanukkah, Kwanzaa and New Year's Eve aren't that far behind—and all that traveling, ...