Whole-virus version safe, effective and can be made quickly, researchers say
Finding could speed development of vaccines for new flu strains, other health threats
Vaccine wasn't a good match for circulating viruses, CDC says
Knowing the source should lead to more effective vaccines, researchers say
But health experts say the report from China is no cause for alarm
It used to only strike sick patients in the hospital -- now, this killer infection is popping up everywhere. Find out what doctors are doing to stop it.
Watch a video on a new drug used to treat allergies and other sinus problems.
A new study uncovers a powerful player in the treatment of HIV.