How the Flu Works

Who Has a Flu Risk?

Anyone can get the flu, but some groups are more susceptible than others and are at greater risk for more serious complications or even death.

Risk groups include:


  • Children under the age of 2 (whose immune system is not yet fully developed)
  • Seniors over the age of 65 (most flu deaths are among seniors)
  • Anyone who has a chronic medical condition (such as asthma or diabetes)
  • Pregnant women
  • Health care workers
  • Nursing home residents

The CDC recommends that high-risk individuals get a flu vaccination each year.