A software to guide AEFI causality assessment
In 2013, WHO revised the methodology for causality assessment of individual Adverse Events Following Immunization (AEFI). The new method proposed by WHO was published in the WHO User manual for the revised WHO classification for causality assessment of AEFI. It uses a paper based tool that allows evaluators to review AEFI cases and guide them on their causality.
A companion electronic software application of the tool is now available for computers, iPads and tablets. The software provides step by step guidance in the assessment and reduces the chances of making errors. This tool will facilitate use of the revised methodology and help conducting research.