[An After-Action Review at Municipal Level in the Public Health Service - Lessons Learned at the Corona Unit of the Duesseldorf Public Health Authority after the end of the Covid-19 Pandemic, March 2023].

Background: After-Action Reviews (AARs) represent structured, qualitative evaluations of crisis interventions. Here, we describe the implementation of an AAR to assess the Corona Unit of the Duesseldorf Health Department.

Methods: We employed an after-action review (AAR) using the working group format supplemented by structured interviews with key personnel.