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Gut fungus exacerbates asthma in antibiotic-treated mice

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A non-pathogenic fungus can expand in the intestines of antibiotic-treated mice and enhance the severity of allergic airways disease, according to a new study. The findings suggest that alterations in gut microbiota induced by intestinal fungi might be a previously unrecognized but potentially important risk of antibiotic therapy in patients with asthma and other respiratory diseases.