IPIES (Influenza Post-Introduction Evaluation)

Influenza Post-Introduction Evaluation (IPIES) is a valuable tool that has emerged from the culmination of similar tools utilized over the last decade. Its development by the World Health Organization (WHO) in collaboration with the CDC and The Task Force approximately four years ago demonstrates its significance in the context of introducing influenza vaccines in different countries.

iPIES serves a crucial purpose, allowing countries to evaluate the effectiveness of their vaccine campaigns and leverage the obtained data to refine and enhance future endeavors. Its implementation focuses on assessing the programmatic aspects of vaccine delivery rather than the technical or scientific efficacy of the influenza vaccines themselves. Through IPIES, the goal is to meticulously evaluate various elements of the vaccine program, such as the timely distribution of vaccines, the proficiency of nurses in administering them, proper storage practices, and any challenges encountered during transportation. By examining each stage of the vaccine supply chain and engaging with numerous stakeholders, including national cold chain personnel, vaccine administrators, and data collectors, IPIES provide a comprehensive analysis of what went well and areas that require improvement. Subsequently, a detailed report is presented to the respective national governments, highlighting the findings and offering recommendations on potential enhancements that could yield cost savings or improve acceptance rates.
While the utilization of IPIES has not been customary in every country where vaccine programs are implemented, there is an ongoing effort to expand its deployment. By proactively leveraging IPIES in every country with which collaborations are established, valuable insights can be gained, leading to enhanced efficiency and efficacy in future influenza vaccine campaigns. The collective endeavor is geared towards continuous improvement and optimizing the impact of these vital public health interventions.