Roughly 40 million people are estimated to wear a fitness tracker of some kind. Now one of those brands, Fitbit, has teamed up with researchers to try and predict COVID-19 symptoms before they start. ...

When COVID-19 first emerged, it was largely seen as a respiratory illness. Over time, doctors discovered that the virus can affect nearly every major organ, including the heart, kidneys, liver, and ...

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 ...

XFG, dubbed “American COVID,” is spreading globally, with reports linking the variant to a distinctive hoarse or croaky voice.