BRISTOL, England, Sept. 14 -- The University of Bristol issued the following news release:

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Bristol research transforms Scottish infection control guidelines

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The AERATOR (AERosolisation And Transmission Of SARS-CoV-2 in Healthcare Settings) study took place during the COVID-19 pandemic. It aimed to understand whether so-called aerosol generating procedures, such as inserting a breathing tube, produced aerosols in significant numbers.