Practical Indicators for Risk of Airborne Transmission in Shared Indoor Environments and Their Application to COVID-19 Outbreaks.

Environ Sci Technol · 2022 · PMC7617205 · PMID 34985868

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a clear trendno p-value reported

COVID-19 outbreaks show a clear trend that is consistent with airborne infection and enable recommendations to minimize transmission risk.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.