The role of the Pan American Committee for Safe Vaccination (COPAVASE) in strengthening safe vaccination in the Americas
The Manual for Surveillance of Events Supposedly Attributable to Vaccination or Immunization in the Region of the Americas represented one of the first steps toward building the regional system for surveillance of events supposedly attributable to vaccination or immunization (ESAVIs) and adverse events of special interest (AESIs). This manual establishes that, after notification and investigation of an event, a national committee of experts should classify the event in accordance with the World Health Organization (WHO) causality classification.