Who Gets Pneumonia? Age and health affect your risk.
Help Prevent a Sore Throat. Continue.
If You Get the Flu While Pregnant. Continue.
What's Behind Frequent Nosebleeds? They could mean a cold or allergy.
Things That May Trigger Wheezing. A symptom of breathing problems.
CDC Urges Faster Testing for Bird Flu Amid Growing Outbreak
Blood Test May Help Predict How Long Immunity Lasts
First U.S. Death From Bird Flu Reported in Louisiana
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