A sore throat without other symptoms is most often caused by allergies, acid reflux, or viruses. Viruses cause 50% to 80% of sore throats in adults. See a doctor if your sore throat is severe or doesn ...

An upper respiratory infection is an illness that can cause nasal congestion, runny nose, sore throat, and cough. It can also cause a fever for the first few days. Upper respiratory infections are ...

A fast-spreading new COVID variant is causing an especially painful symptom that patients describe as a razor-blade sore throat, doctors report. According to TODAY, the variant is circulating widely ...

This summer, COVID-19 is very much still a risk for many—even if you're generally healthy, doctors warn. "Nearly everyone remains at some risk of a severe COVID infection," Dr. Michael Mina, MD, Ph.D.