Learn about the safety and effectiveness of COVID-19 vaccines for kids, the possible side effects, and the benefits of vaccination.

Find out about the COVID-19 vaccines, the benefits of COVID-19 vaccination and the possible side effects.

Scientists say they have identified a mutated autoantibody gene as the mechanism behind rare but serious abnormal blood ...

Add Yahoo as a preferred source to see more of our stories on Google. "When COVID first appeared, we saw the lower respiratory tract manifestation, that is pneumonia. We don't see that anymore," Dr.

Respiratory viruses are more active from October through March. Use over-the-counter COVID tests and clinical tests to distinguish respiratory viruses. Health officials advise vaccines, testing and ...

Do you have a sore throat, a runny nose and muscle aches? It could be a common cold, a case of the flu -- or COVID-19. The illnesses all share similar symptoms, sometimes making it hard to distinguish ...

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 ...

If you partied hard or just enjoyed seeing family during the winter holidays (whether it was Christmas, Hanukkah, Kwanzaa, New Year’s Eve or all of them!), chances are you were exposed to their germs.

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, ...