Masks good, ventilation better at cutting COVID risk at indoor events - study
Face masks and limits on numbers are important, but good ventilation technology is the most essential ingredient of all in reducing the risk of the coronavirus spreading at public events indoors, according to a German study. Around 1,500 volunteers with face masks, hand sanitiser and proximity trackers attended an indoor pop-concert in Leipzig in August to assess how the virus spreads in large gatherings. Reseachers simulated three scenarios with varying numbers of spectators and social-distancing standards, and created a computer model of the arena to analyse the flow of aerosols from infected virtual spectators.
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