Sensorineural hearing loss (SNHL) as an adverse event following immunization (AEFI): Case definition & guidelines for data collection, analysis, and presentation of immunization safety data

Vaccine. 2020 Jun 19;38(30):4717-4731. doi: 10.1016/j.vaccine.2020.05.019. Epub 2020 May 15.


This is a Brighton Collaboration case definition of the term "Sensorineural Hearing Loss" to be utilized in the evaluation of adverse events following immunization. The case definition was developed by a group of experts convened by the Coalition for Epidemic Preparedness Innovations (CEPI) in the context of active development of vaccines for Lassa Fever and other emerging pathogens. The case definition format of the Brighton Collaboration was followed to develop a consensus definition and define levels of diagnostic certainty, after an exhaustive review of the literature and expert consultation. The document underwent peer review by the Brighton Collaboration Network.

Keywords: Adverse event; Adverse event following immunization (AEFI); Adverse event of special interest (AESI); Case definition; Guidelines; Hearing loss (HL); Immunization; Sensorineural hearing loss (SNHL); Vaccines.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adverse Drug Reaction Reporting Systems
  • Data Collection
  • Hearing Loss, Sensorineural*
  • Humans
  • Immunization / adverse effects
  • Vaccines*


  • Vaccines