Who needs which flu vaccine?

Who needs vaccine against regular seasonal flu, and who should be first in line for the swine flu shot? There's lots of overlap.

People who need seasonal flu vaccine most include:

• Adults 50 and older.

• All children age 6 months to 18 years.

• Pregnant women.

• People of any age with chronic health problems like asthma, heart disease or a weakened immune system.

• Health workers.

• Caregivers to the high-risk, including babies younger than 6 months.

There's a nasal spray version of the vaccine, called FluMist, available for people ages 2 to 49.

Once the swine flu vaccine starts arriving, the government says the order will be:

• Pregnant women.

• The young, from age 6 months up through age 24.

• Health workers.

• Younger and middle-aged adults with those chronic health conditions.