Tracking immunization delivery was an important component of the public health response to the novel H1N1 pandemic of 2009. The rapid large-scale distribution of vaccine to local health departments and the need for urgent delivery of vaccine to the population through mass immunization campaigns eclipsed opportunities to develop electronic methods for tracking vaccinations. MRAIA collaborated with the Chicago Department of Public Health (CDPH) to develop a web-based system for collecting immunization data from mobile clinics and ad hoc immunization sites during future crises. 
 

To improve efficiency and accuracy of data entry, CDPH immunization managers pre-populated certain fields, such as vaccine information statement dates, type of vaccine, and vaccine lot numbers. Real-time report functionality enabled situation awareness and deployment of resources from a central location; managers monitored the number of vaccines administered and the patient queue.