With measles outbreaks, flu spikes, and COVID as a seasonal threat, learn key differences between these contagious diseases, ...

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, ...

The novel coronavirus that causes COVID-19 has spread globally, killing hundreds of thousands of people and infecting millions more. The pandemic has upended life around the world, delivering a ...

Covid symptoms 2026: A new review has found that the symptoms of long COVID are not isolated phenomena, but a set of symptoms which are overlapping and are experienced differently by different ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. The omicron variant is forcing us to rethink ...

When the coronavirus outbreak began, the Centers for Disease Control and Prevention listed cough, shortness of breath and fever as possible symptoms for the newly-discovered virus. Now, the ...

A large new study may help form some answers to those questions. In line with prior estimates, it finds that almost a quarter ...

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. "When COVID first appeared, we saw the lower respiratory tract manifestation, that is pneumonia. We don't see that anymore," Dr.