Florida reported 20 outbreaks of flu in 12 counties Jan. 4-10. What to know about symptoms, when to call a doctor.

With so many overlapping symptoms, it makes sense to wonder what the key differences are between a sinus infection vs. a cold ...

Sinusitis, sometimes called a sinus infection, is a common condition that often develops after a cold or flu. Because its ...

Who knows why different people have different symptoms with the common cold? Well, a new study used laboratory-grown noses ...

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 ...

Power outages and prolonged exposure to frigid temperatures carry a risk of hypothermia that cannot be ignored.

recognizing the key differences in how they start, the severity of fever, and specific signs is crucial for accurate ...

Flu, COVID-19, the common cold and RSV have similarities, but they differ in their severity, contagiousness and symptoms. Vaccines are available for COVID-19, the flu and RSV. However, there is no ...

Cold urticaria is a rare but potentially serious condition in which contact with cold weather causes the immune system to ...

Add Yahoo as a preferred source to see more of our stories on Google. Sneezing? Feeling congested? Coughing? Are these signs of flu season, a cold or allergies, or are they symptoms of COVID-19? What ...