What Causes a Cold Sore? Factors can include injury or stress.
Considering the Nasal Spray Flu Vaccine? Some people shouldn't get it, experts say.
Using a Nasal Spray. Make sure you follow the directions.
Reduce Infection Risk After Ear Piercing. And help speed healing.
Help Keep Germs at Bay. Cover your mouth when you cough or sneeze.
Moderna’s New Flu Shot Shows Strong Results in Older Adults
COVID Vaccine Labels To Warn of Rare Heart Risk
RFK Jr.-Appointed Vaccine Panel Removes Flu Shot Ingredient
Wastewater Can Accurately Predict COVID-19 Surges
Updated COVID Vaccines Effective Against New Strains
How Wildfires Might Increase Risk Of Flu, COVID-19