Author: Sly, Peter D.; Trottier, Brittany A.; Bulka, Catherine M.; Cormier, Stephania A.; Fobil, Julius; Fry, Rebecca C.; Kim, Kyoung-Woong; Kleeberger, Steven; Kumar, Pushpam; Landrigan, Philip J.; Lodrop Carlsen, Karin C.; Pascale, Antonio; Polack, Fernando; Ruchirawat, Mathuros; Zar, Heather J.; Suk, William A.
Title: The interplay between environmental exposures and COVID-19 risks in the health of children Cord-id: 9ty1oq52 Document date: 2021_3_26
ID: 9ty1oq52
Snippet: BACKGROUND: An unusual feature of SARS-Cov-2 infection and the COVID-19 pandemic is that children are less severely affected than adults. This is especially paradoxical given the epidemiological links between poor air quality and increased COVID-19 severity in adults and that children are generally more vulnerable than adults to the adverse consequences of air pollution. OBJECTIVES: To identify gaps in knowledge about the factors that protect children from severe SARS-Cov-2 infection even in the
Document: BACKGROUND: An unusual feature of SARS-Cov-2 infection and the COVID-19 pandemic is that children are less severely affected than adults. This is especially paradoxical given the epidemiological links between poor air quality and increased COVID-19 severity in adults and that children are generally more vulnerable than adults to the adverse consequences of air pollution. OBJECTIVES: To identify gaps in knowledge about the factors that protect children from severe SARS-Cov-2 infection even in the face of air pollution, and to develop a transdisciplinary research strategy to address these gaps. METHODS: An international group of researchers interested in children’s environmental health was invited to identify knowledge gaps and to develop research questions to close these gaps. DISCUSSION: Key research questions identified include: what are the effects of SAR-Cov-2 infection during pregnancy on the developing fetus and child; what is the impact of age at infection and genetic susceptibility on disease severity; why do some children with COVID-19 infection develop toxic shock and Kawasaki-like symptoms; what are the impacts of toxic environmental exposures including poor air quality, chemical and metal exposures on innate immunity, especially in the respiratory epithelium; what is the possible role of a “dirty†environment in conveying protection – an example of the “hygiene hypothesisâ€; and what are the long term health effects of SARS-Cov-2 infection in early life. CONCLUSION: A concerted research effort by a multidisciplinary team of scientists is needed to understand the links between environmental exposures, especially air pollution and COVID-19. We call for specific research funding to encourage basic and clinical research to understand if/why exposure to environmental factors is associated with more severe disease, why children appear to be protected, and how innate immune responses may be involved. Lessons learned about SARS-Cov-2 infection in our children will help us to understand and reduce disease severity in adults, the opposite of the usual scenario.
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