Doctors warn that two of these symptoms in particular can cause complications.

Plus, what to do if you get sick this summer or fall.

A cough, fever, sore throat, tiredness, or a runny nose can leave anyone wondering what they are dealing with. Is it a cold?

Scientists are learning more each day about the mysterious novel coronavirus and the symptoms it causes. Fever, cough and shortness of breath are found in the vast majority of all COVID-19 cases. But ...

The influenza (flu) season has arrived about a month earlier than usual, while the number of COVID-19 inpatients has ...

H1N1 and COVID-19 share many symptoms, but key differences, co-infection risks, and testing can help guide the right ...

A fever, sore throat and cough can make the diagnosis seem obvious. But respiratory infections do not always follow neat ...

AI-powered sleep data could help detect rising levels of flu and COVID-19 around a week earlier, according to a new study by ...