Monitoring Influenza A (H1N1) Monovalent Vaccine Doses Administered Using Cdc's Countermeasure and Response Administration System: Lessons Learned

Background: The Centers for Disease Control and Prevention (CDC)’s Countermeasure Response Administration (CRA) system was used to monitor influenza A (H1N1) monovalent [2009 H1N1] vaccine doses administered according to defined age groups during the 2009-2010 federal campaign. 

Objectives: The objective of this presentation is to share the lessons learned, best practices and the highlighted results of the monitoring of 2009 H1N1 vaccines doses administered both at the state and CDC level.

Methods: From early October 2009 to late November, 62 CDC public health emergency preparedness (PHEP) grantees in 50 states, 8 U.S. Territories and Island Jurisdictions and four major metropolitan areas (New York City, District of Columbia, Los Angeles County and Chicago) reported vaccine doses administered via the CDC’s CRA system using one of three options: (1) data exchange with a immunization information system or other system, (2) direct web-entry of aggregate data, or (3) direct web-entry of individual patient-level data, which CRA then automatically aggregates the counts. The doses administered were reported in the following age-groups: 6-23 months, 24-59 months, 5-18 years and 19-24 years, 25-49, 50-64 years and ≥ 65 years. Two doses were reported for children below 10 years.

Results: A national summary of the doses administered report will be shared. The strengths, highlights, lessons learned, success stories and best practices will be discussed.

Conclusions: Tracking 2009 H1N1 vaccine doses administered using the CRA system met its goal as a monitoring tool during the early stages of the 2009 H1N1 campaign. Lessons learned can be useful in future event preparation.