The first data on how well the flu vaccine is working this season in North America has just been published.
New research shows flu can spread through respiration more easily than we thought.
This season set a number of firsts - like the first recorded instance of "widespread" flu activity across the continental U.S.
An effective flu vaccine must target the right strains of the virus. If those strains change quickly enough, we get a severe flu season like this one.
Influenza kills about a half million people each year, but scientists say a universal flu vaccine might drastically change that.
Researchers are testing a painless skin patch that features tiny, dissolvable needles full of the flu vaccine.
The flu season is starting to pick up, despite a slow start, according to the Centers for Disease Control. The CDC says the…
The Centers for Disease Control and Prevention found that a popular nasal spray vaccine was only 3 percent effective in kids 2 years old and up.