AESI Case Definition Companion Guide: Acute Encephalitis

This document collates into a single document all SPEAC Encephalitis resources (Risk factors, background rates, ICD9/10-CM & MedDRA codes), tools (data abstraction & interpretation form, tabular summary of key case definition criteria and algorithm for level of certainty determination, pictorial level of certainty algorithm) and guidance (real time investigation, data collection, analysis and presentation). This guide can be used by stakeholders to assess the occurrence of encephalitis in several settings including as an adverse event following immunization.