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Bus Riding as Amplification Mechanism for SARS-CoV-2 Transmission, Germany, 20211
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4 2024
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Source: Emerg Infect Dis. 2024; 30(4):711-720
[PDF-2.86 MB]
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Alternative Title:Emerg Infect Dis
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Description:To examine the risk associated with bus riding and identify transmission chains, we investigated a COVID-19 outbreak in Germany in 2021 that involved index case-patients among bus-riding students. We used routine surveillance data, performed laboratory analyses, interviewed case-patients, and conducted a cohort study. We identified 191 case-patients, 65 (34%) of whom were elementary schoolchildren. A phylogenetically unique strain and epidemiologic analyses provided a link between air travelers and cases among bus company staff, schoolchildren, other bus passengers, and their respective household members. The attack rate among bus-riding children at 1 school was ≈4 times higher than among children not taking a bus to that school. The outbreak exemplifies how an airborne agent may be transmitted effectively through (multiple) short (<20 minutes) public transport journeys and may rapidly affect many persons.
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Pubmed ID:38526123
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Pubmed Central ID:PMC10977817
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Volume:30
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Issue:4
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