The U.S. may or may not be headed for a “tripledemic” scenario like it saw last year—one in which three main pathogens drive up illnesses, hospitalizations, and general misery. The term "tripledemic" ...

Add Yahoo as a preferred source to see more of our stories on Google. Wintertime unfortunately means cold and flu season. And for the estimated 40 million people who get the flu each year, it can ...

Pneumonia causes more than 1 million hospitalizations and 50,000 deaths per year in the U.S., according to the American Lung Association. Pneumonia is an infection that inflames the air sacs in one or ...

Respiratory syncytial virus (RSV) is an infection that affects your lungs, nose, throat, and breathing passages. You get it when infected droplets enter your nose, eyes, or mouth. This might happen ...

Mycoplasma pneumoniae is a common cause of mild respiratory illness, sometimes referred to as "walking pneumonia." Symptom onset is "typically gradual," the CDC says. It can include fever, a cough, ...