After action review

An After Action Review (AAR) is a qualitative review of actions taken to respond to a public health event or following a project or a public health intervention as a means of identifying and documenting best practices demonstrated and challenges encountered during the response to the event or the implementation of the project. The AAR process involves a structured facilitated discussion or experience sharing among responders to critically and systematically review what was in place before the response and could have been used, what actually happened during the response, what went well, what went less well, why events occurred as they did, and how to improve. It is an important management tool for continuous performance improvement and learning.

More specifically, the objectives of an AAR are:

  • to review actions undertaken at each phase of managing a public health event, to identify what worked well, what worked less well and why;
  • to demonstrate the functionality of national capacities in preparing for, detecting and responding to a public health event;
  • to identify the corrective actions needed to institutionalize any lessons emerging from the management of public health events;
  • to address the challenges made evident through the AAR.

 

Key publications

Third meeting of the WHO Technical Advisory Group on candidate vaccine prioritization (TAG-CVP) for Bundibugyo virus disease outbreak response: meeting report, 31 July 2026
This meeting report summarizes the deliberations and recommendations of the third meeting of the WHO Technical Advisory Group on Candidate Vaccine Prioritization...
Overview and Assessment of Communicable Disease Surveillance Systems and Strategic Information Sources in the South-East Asia Region: Nepal Country Report, 2023

This assessment was undertaken as part of a broader WHO South-East (SE) Asia regional initiative to strengthen communicable disease surveillance and strategic...

Overview and Assessment of Communicable Disease Surveillance Systems and Strategic Information Sources in the South-East Asia Region: Myanmar Country Report, 2024

This assessment was conducted as part of the WHO South-East (SE) Asia regional initiative to strengthen indicator-based communicable disease surveillance...

AAR online training

AAR training

This course has been designed to introduce the learners to the knowledge and skills needed for a successful management and facilitation of an After Action Review (AAR) using a working group format.

The learning objectives are the following:

  • Explain the context and the purpose of an AAR
  • Describe the general of the AAR process (by using the working group format)
  • Describe the general of the AAR process (by using the working group format).
  • Distinguish roles and responsibilities of facilitators in the AAR process and describe the techniques for participatory facilitation.
  • Indicate the resources available for conducting an AAR and know where to find them.
  • Expected audience: IHR NFPs, WHO staff, Health professionals and partners, any person interested in reviewing any emergency response.

 

AAR toolbox