According to the Advisory Committee on Immunization Practices (ACIP), all people aged 50 years or older and persons aged less than 50 years who have medical conditions that put them at increased risk for serious influenza disease should receive an annual influenza vaccination. However, since the mid-1990s, vaccination rates and racial disparities have mostly remained static, and there has been limited progress towards the Healthy People 2010 objectives for influenza vaccination coverage.