What Causes a Cold Sore? Factors can include injury or stress.
Things to Know About This Year's Flu Shot. Continue.
Protect Baby from Whooping Cough. Continue.
What's Behind That Cough? Here are potential triggers.
Considering Cough Medicine? It may not be appropriate.
First U.S. Death From Bird Flu Reported in Louisiana
Blood Test May Help Predict How Long Immunity Lasts
Cruise Passenger Dies Amid Norovirus Outbreak That Sickened Dozens
Norovirus Cases Are Up in Pockets of the U.S.
CDC Reports Potentially Troublesome Mutations in Bird Flu Found in Louisiana Patient
Has RSV Vaccine Hesitancy Subsided?
