ArticleEnvironmental health perspectives2025
Effects of Long-Term Air Pollution Exposure on Disease Outcomes and Hybrid Immune Responses in SARS-CoV-2 Breakthrough Infections: A Study of the Yichang COVID-19 Antibody Longitudinal Survey (YC-CALS) in China.
Article in Environmental health perspectives, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundAs immunity wanes and viral mutations continue, the risk of endemic SARS-CoV-2 breakthrough infections (BTIs) remains. Air pollution is considered a risk factor for respiratory infection, but evidence of its association with SARS-CoV-2 BTIs is limited.
objectivesWe aimed to examine the effects of long-term exposure to air pollution on disease outcomes, immune responses, and antibody dynamics of SARS-CoV-2 BTIs.
methodsWe gathered data on self-reported SARS-CoV-2 infections through questionnaires and measured IgG antibody levels using serological assays from a total of 6,875 participants from the Yichang COVID-19 Antibody Longitudinal Survey cohort in China. Air pollutant exposure [particulate matter (PM) with an aerodynamic diameter
resultsPer interquartile range (IQR) increase in DISCUSSION: Long-term exposure to air pollution increases the risk of SARS-CoV-2 BTIs and disease severity while weakening the immune response, particularly for vulnerable populations. https://doi.org/10.1289/EHP15660.
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