Guidance for Implementing the Regional COVID-19 Vaccine AEFI/AESI Surveillance System

The purpose of this guidance document is to develop a sensitive, timely, standardized, reliable, and integrated regional AEFI surveillance system with the participation of all actors involved in safe vaccination to maintain trust in vaccination and acceptance of immunization in the Americas. Contribute to the early detection and correct classification of serious AEFIs and risk markers to generate a rapid and appropriate national and regional response.