Medically reviewed by Renee Nilan, MD Key Takeaways COVID arm rash is a mild reaction that usually appears a week after the ...

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

You may want to keep tests and masks handy.

NEW YORK -- This holiday season held promise for Americans, many of whom spent Christmas 2020 in quarantine or away from loved ones due to a nasty winter COVID-19 surge. Yet in the last week or so, ...

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, ...