Allergic reactions to COVID-19 vaccines: statement of the Belgian Society for Allergy and Clinical Immunology (BelSACI)

2021 ◽  
pp. 1-6
Author(s):  
Sebastiaan Tuyls ◽  
Xavier Van Der Brempt ◽  
Margaretha Faber ◽  
Romy Gadisseur ◽  
Bita Dezfoulian ◽  
...  
2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Timothy K. Vander Leek ◽  
Edmond S. Chan ◽  
Lori Connors ◽  
Beata Derfalvi ◽  
Anne K. Ellis ◽  
...  

Abstract Background Safe and effective vaccines provide the first hope for mitigating the devastating health and economic impacts resulting from coronavirus disease 2019 (COVID-19) and related public health orders. Recent case reports of reactions to COVID-19 vaccines have raised questions about their safety for use in individuals with allergies and those who are immunocompromised. In this document, we aim to address these concerns and provide guidance for allergists/immunologists. Methods Scoping review of the literature regarding COVID-19 vaccination, adverse or allergic reactions, and immunocompromise from PubMed over the term of December 2020 to present date. We filtered our search with the terms “human” and “English” and limited the search to the relevant subject age range with the term “adult.” Reports resulting from these searches and relevant references cited in those reports were reviewed and cited on the basis of their relevance. Results Assessment by an allergist is warranted in any individual with a suspected allergy to a COVID-19 vaccine or any of its components. Assessment by an allergist is NOT required for individuals with a history of unrelated allergies, including to allergies to foods, drugs, insect venom or environmental allergens. COVID-19 vaccines should be offered to immunocompromised patients if the benefit is deemed to outweigh any potential risks of vaccination. Interpretation This review provides the first Canadian guidance regarding assessment of an adolescent and adult with a suspected allergy to one of the COVID-19 vaccines currently available, or any of their known allergenic components, and for patients who are immunocompromised who require vaccination for COVID-19. As information is updated this guidance will be updated accordingly.


1962 ◽  
Vol 42 (3) ◽  
pp. 367-368
Author(s):  
E. Jacobs ◽  
J.P. Weill
Keyword(s):  

2011 ◽  
Vol 81 (23) ◽  
pp. 173-180 ◽  
Author(s):  
Barbara K. Ballmer-Weber

Four to eight percent of the population are estimated to be food-allergic. Most food allergies in adolescents and adults are acquired on the basis of cross-reaction to pollen allergens. Theses allergens are ubiquitous in the plant kingdom. Therefore pollen-allergic patients might acquire a multitude of different plant food allergies, and even react to novel foods to which they have never previously been exposed. A curative therapy for food allergy does not yet exist. Food-allergic patients have to rely on strict avoidance diets, The widespread use of industrially processed foods poses a general problem for food-allergic patients. Although the most frequent allergens must be declared openly in the list of ingredients, involuntary contamination with allergy-provoking compounds can occur. The precautionary labelling “may contain” is sometimes applied even if the chance of contamination is very low; on the other hand, foods not declared to contain possible traces of allergenic components may actually contain relevant amounts of allergenic proteins. Switzerland is the only country in Europe with legal regulations on contamination by allergenic food; however, the allowance of 1 g/kg is too high to protect a relevant proportion of food-allergic individuals.


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