Published February 2021 | Version v1.0.0
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COVID-19 vaccine-associated anaphylaxis: A statement of the World Allergy Organization Anaphylaxis Committee

  • 1. ROR icon Imperial College London
  • 2. Hospital Quironsalud Bizkaia
  • 3. ROR icon University of Sydney
  • 4. ROR icon Vall d'Hebron Hospital Universitari
  • 5. ROR icon National Sagamihara Hospital
  • 6. ROR icon Ain Shams University
  • 7. ROR icon Emory University
  • 8. ROR icon Mayo Clinic
  • 9. ROR icon Northwestern University
  • 10. ROR icon Chinese University of Hong Kong
  • 11. ROR icon University of Cape Town
  • 12. ROR icon University of Padua
  • 13. ROR icon Centro Médico Docente La Trinidad
  • 14. ROR icon University of Verona
  • 15. ROR icon Hospital Sírio-Libanês
  • 16. ROR icon Tan Tock Seng Hospital
  • 17. ROR icon Charité - University Medicine Berlin

Abstract

Vaccines against COVID-19 (and its emerging variants) are an essential global intervention to control the current pandemic situation. Vaccines often cause adverse events; however, the vast majority of adverse events following immunization (AEFI) are a consequence of the vaccine stimulating a protective immune response, and not allergic in etiology. Anaphylaxis as an AEFI is uncommon, occurring at a rate of less than 1 per million doses for most vaccines. However, within the first days of initiating mass vaccination with the Pfizer-BioNTech COVID-19 vaccine BNT162b2, there were reports of anaphylaxis from the United Kingdom and United States. More recent data imply an incidence of anaphylaxis closer to 1:200,000 doses with respect to the Pfizer-BioNTech vaccine. In this position paper, we discuss the background to reactions to the current COVID-19 vaccines and relevant steps to mitigate against the risk of anaphylaxis as an AEFI. We propose a global surveillance strategy led by allergists in order to understand the potential risk and generate data to inform evidence-based guidance, and thus provide reassurance to public health bodies and members of the public.

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original_citation: Turner PJ, Ansotegui IJ, Campbell DE, Cardona V, Ebisawa M, El-Gamal Y, Fineman S, Geller M, Gonzalez-Estrada A, Greenberger PA, Leung ASY, Levin ME, Muraro A, Borges MS, Senna G, Tanno LK, Thong BYH, Worm M, Comm WAOA. COVID-19 vaccine-associated anaphylaxis: A statement of the World Allergy Organization Anaphylaxis Committee. World Allergy Organization Journal. 2021;14(2):10.

Acknowledgements

We thank Drs Sophie Farooque and Alessia Baseggio Conrado (London) for reviewing a draft of this manuscript.

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Created
2021-02
When the item was originally created.