What Causes a Cold Sore? Factors can include injury or stress.
Worried About Lung Disease? Watch for these early-warning signs.
When a Cold Won't Go Away. It might be an allergy.
Protect Yourself From Wildfire Smoke Exposure. Stay inside and try to keep indoor air clean.
Why You Might Have an Earache. Here are possible causes.
Long COVID Might Be Twice As Common As Previously Thought
US on the Brink of Losing Measles-free Status, Study Warns
Nasal Spray Flu Vaccines Create 'Battlefield' In Adults' Noses
First Measles Case of the Year Reported in New Jersey
ER Study Finds Major Gaps in Measles Immunity
Pentagon Drops Flu Vaccine Requirement For U.S. Military
