c7a7ed71_ic_Disease__July_2008__07_0097__Domain
[BRFSS] During the past 12 months, have you had a flu shot? [Comparison Questiona] NHIS: During the past 12 months, have you had a flu shot? A flu shot is usually given in the fall and protects against influenza for the flu season. [Domain] 
Influenza vaccination
Preventing Chronic Disease: July 2008: 07_0097