Posted in Aviation, Government & Military, Health & Medicine, Organizations AEFI stands for Adverse Events Following Immunization AEFI stands for Asociación Española de Farmacéuticos de la Industria AEFI stands for Associazione Esposizioni e Fiere Italiane (Italian: Italian Exhibition and Trade Fair Association) AEFI stands for Air and Space Expeditionary Force Indicator (US Air Force) AEFI stands for Adverse Effect Following Immunization