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The Association between Respiratory Infection and Air Pollution in the Setting of Air Quality Policy and Economic Change.

Daniel P CroftWangjian ZhangShao LinSally W ThurstonPhilip K HopkeMauro MasiolStefania SquizzatoEdwin van WijngaardenMark J UtellDavid Q Rich
Published in: Annals of the American Thoracic Society (2020)
Increased rates of culture-negative pneumonia and influenza were associated with increased PM2.5 concentrations during the previous week, which persisted despite reductions in PM2.5 from air quality policies and economic changes. Though unexplained, this temporal variation may reflect altered toxicity of different PM2.5 mixtures or increased pathogen virulence.
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