

15 Ways to Boost Your Immune System
Doctors share their best tips for staying well.


Former CDC Director Warns of Bird Flu Pandemic
He says it's "very likely."


"Mutant" Flu Strains Have Been Detected in U.S.
And the CDC says drugs may not help.


Bird Flu Could Start Spreading Between Humans
An expert explains the "very high likelihood."


6 Symptoms of Bird Flu in Humans
The CDC issued a new alert about the infection.


4 New Vaccines You Need This Year, CDC Warns
Here's what the agency advises.


14 States Where Respiratory Illness Is Spreading
Post-holiday spikes are growing fastest here.


10 States Where Respiratory Illness Is Spreading
CDC data shows they're spiking fastest here.


16 States Where Respiratory Illness Is Spreading
The CDC warns viruses are spreading fast here.


China's Seeing a Surge in Respiratory Illness
Here's what's really behind it, doctors say.


Outraged Shoppers Say Mucinex Is Being Pulled
They're circulating theories online.


Should You Drink Coffee When You're Sick?
Doctors weigh in.


8 Popular Cold Meds at Risk of Being Banned
A new FDA ruling could shake things up.


FDA Investigating Common Cold Meds
These "should never be used," doctors warn.


CVS and Walgreens Are Running Out of OTC Meds
Here's why some popular drugs are harder to find.