It's not easy to tell these health conditions apart based on their symptoms alone. Find out about the differences between these illnesses.

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 ...

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 ...

What used to be a predictable “cold and flu season” has evolved into a formidable “triple threat” of the flu, RSV, and COVID-19—and now, the highly contagious norovirus is joining the headlines. For ...

The spread of coronavirus in the U.S. has plenty of people worried. But, as freaky as it is to to hear words like "pandemic" thrown around, the data shows that most people who contract the virus have ...

Lindsay Curtis is a health & medical writer in South Florida. She worked as a communications professional for health nonprofits and the University of Toronto’s Faculty of Medicine and Faculty of ...

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

With flu rates skyrocketing across the United States and elsewhere, you might be wondering if your sniffles are the flu or whether it’s something else. It can be hard to know, without testing, what is ...