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COVID-19 and Pediatric Asthma: Clinical and Management Challenges

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  • José Laerte Boechat

    (Clinical Immunology Service, Internal Medicine Department, Faculty of Medicine, Universidade Federal Fluminense, Niterói 24070-035, Brazil
    Basic and Clinical Immunology Unit, Department of Pathology, Faculty of Medicine, University of Porto, Porto 4200-319, Portugal
    Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Porto 4200-319, Portugal)

  • Gustavo Falbo Wandalsen

    (Department of Pediatrics, Faculty of Medicine, Universidade Federal de Sao Paulo, São Paulo 04025-002, Brazil)

  • Fabio Chigres Kuschnir

    (Department of Pediatrics, Faculty of Medicine, Universidade do Estado do Rio de Janeiro, Rio de Janeiro 20943-000, Brazil)

  • Luís Delgado

    (Basic and Clinical Immunology Unit, Department of Pathology, Faculty of Medicine, University of Porto, Porto 4200-319, Portugal
    Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Porto 4200-319, Portugal)

Abstract

Asthma is the most frequent chronic condition in childhood and a current concern exists about asthma in the pediatric population and its risk for severe SARS-CoV-2 infection. Although all ages can be affected, SARS-CoV-2 infection has lower clinical impact on children and adolescents than on adults. Fever, cough and shortness of breath are the most common symptoms and signs in children; wheezing has not been frequently reported. Published studies suggest that children with asthma do not appear to be disproportionately more affected by COVID-19. This hypothesis raises two issues: is asthma (and/or atopy) an independent protective factor for COVID-19? If yes, why? Explanations for this could include the lower IFN-α production, protective role of eosinophils in the airway, and antiviral and immunomodulatory proprieties of inhaled steroids. Additionally, recent evidence supports that allergic sensitization is inversely related to ACE2 expression. Obesity is a known risk factor for COVID-19 in adults. However, in the childhood asthma–obesity phenotype, the classic atopic Th2 pattern seems to predominate, which could hypothetically be a protective factor for severe SARS-CoV-2 infection in children with both conditions. Finally, the return to school activities raises concerns, as asymptomatic children could act as vectors for the spread of the disease. Although this is still a controversial topic, the identification and management of asymptomatic children is an important approach during the SARS-CoV-2 epidemic. Focus on asthma control, risk stratification, and medication adherence will be essential to allow children with asthma to return safely to school.

Suggested Citation

  • José Laerte Boechat & Gustavo Falbo Wandalsen & Fabio Chigres Kuschnir & Luís Delgado, 2021. "COVID-19 and Pediatric Asthma: Clinical and Management Challenges," IJERPH, MDPI, vol. 18(3), pages 1-18, January.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:3:p:1093-:d:487511
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    References listed on IDEAS

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