Asthma Allergy Immunology

Asthma Allergy Immunology

The Impact of Vaccination with SARS-CoV-2 Vaccines on the Course of Chronic Spontaneous Urticaria

Şengül BEYAZ 1, Neyran ŞERBETÇI 1, Zeynep Türkan FENDOĞLU 1, Esra Nur BÜLBÜL 1, Zeynep HANCIOĞLU 1, Dilek ÖKSÜZER ÇIMŞIR 1, Özge ÖZTÜRK AKTAŞ 2, Zeynep ÇELEBI SÖZENER 1, Şadan SOYYIĞIT 2,

1 Department of Immunology and Allergic Diseases, Ankara City Hospital, Ankara, Turkey
2 Division of Immunology and Allergic Diseases, Department of Chest Diseases, Yıldırım Beyazıt University Faculty of Medicine, Ankara, Turkey

DOI: 10.21911/aai.083
Viewed: 80
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Downloaded : 92

Objective: Although the factors that trigger and exacerbate chronic spontaneous urticaria (CSU) are well known, there is still a lack of information about the effects of COVID-19 vaccines on CSU. This study aimed to investigate exacerbations/relapses triggered by COVID-19 vaccines in patients with CSU who are well controlled with treatment or in remission.

Materials and Methods: The study included 350 CSU patients. Demographic and clinical characteristics were collected from patients` medical records. The seven-day urticaria activity score (UAS7) and urticaria control test (UCT) were evaluated separately during the onset of the disease, pre-vaccination, and post-vaccination periods.

Results: The mean age was 39.89±13.30 years and 74.6% of the patients were female. A total of 227 patients were vaccinated with the Pfizer/BioNTech mRNA vaccine, 67 with the Sinovac/CoronaVac inactivated vaccine, and 54 with both vaccines. Urticaria exacerbations/ relapses were observed in a total of 76 patients, and most CSU exacerbations/relapses occurred after the first dose (n=46). Median UAS7 scores increased significantly in the post-vaccination period in patients who experienced urticaria exacerbation (p<0.0001). Median UCT scores were significantly decreased due to urticaria exacerbation with vaccination (p<0.0001).

Conclusion: Both mRNA and inactivated COVID-19 vaccine may lead to exacerbations or relapses in patients with CSU. Even so, exacerbations/relapses associated with COVID-19 vaccines can be easily controlled with treatments and do not preclude subsequent doses.

Keywords : Chronic spontaneous urticaria, SARS-CoV-2 vaccination, urticaria activity score, urticaria control test