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COVID-19 Incidence and Disease Course Among Patients at an Allergy Department

Louise E van der Aa, Inge S van Egmond, Martijn van der Sluijs

  • 1Department of Internal Medicine, Division of Allergy & Clinical Immunology, Erasmus University Medical Center, Rotterdam, the Netherlands.

Therapeutic Advances in Allergy and Rhinology
|May 19, 2023
PubMed

Insights

Patients with allergic diseases had a higher cumulative incidence of COVID-19 compared to the general population. However, disease severity and duration were similar between allergy patients and their household members.

Area of Science:

  • Allergy and Immunology
  • Infectious Diseases
  • Epidemiology

Background:

  • Limited data exists on COVID-19 disease course in patients with allergic diseases since 2020.
  • Understanding COVID-19 impact on this population is crucial for public health management.

Purpose of the Study:

  • To compare the cumulative incidence and severity of COVID-19 in allergy patients versus the general Dutch population.
  • To assess COVID-19 outcomes in allergy patients relative to their household members.

Main Methods:

  • A comparative longitudinal cohort study design was employed.
  • Data collected via telephonic interviews and electronic patient files (Oct 2020 - Jan 2021).
  • Outcomes included SARS-CoV-2 infection, disease duration, hospitalization, ICU admission, and mortality.

Main Results:

  • Cumulative COVID-19 incidence was higher in allergy patients (10.5%) than the general population (5.6%, P<.001).
  • Infection rates were similar between allergy patients (10.5%) and household members (8.6%, P=.407).
  • Median disease duration showed no significant difference between allergy patients and household members.

Conclusions:

  • Allergy patients exhibited a higher cumulative COVID-19 incidence compared to the general Dutch population.
  • No significant differences in COVID-19 symptoms, disease duration, or hospitalization rates were observed between allergy patients and their household controls.
Abstract

Keywords:
COVID-19SARS-CoV-2allergyhypersensitivityincidence

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