Seasonal Influenza Vaccination Reminders for Children With High-risk Conditions

Seasonal Influenza Vaccination Reminders for Children With High-risk Conditions

The objective of this study was to assess the feasibility and effectiveness of using a statewide immunization information system (IIS) to send seasonal influenza vaccine reminders from Local Health Departments (LHDs), targeting children with high-risk conditions.

Inclusion Criteria:

• children, 24-60 months
• current or previous enrollment in Medicaid (Michigan)
• presence of at least 1 chronic condition, as indicated by the Michigan Care Improvement Registry (MCIR)
• resident of Kalamazoo, Ottawa, or Kent counties (Michigan)

Exclusion Criteria:

• receipt of influenza prior to notification date
• ineligible for reminder/recall notification in the Michigan Care Improvement Registry (MCIR)