Pubs, restaurants & #Covid19: How the virus spreads inside (pre Omicron) 1/ thetimes.co.uk/article/ventil… 
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4/ (only people who have had a booster more than 2 weeks ago & less than 3 months ago are likely to have high levels of immunity to Omicron)
5/ (as Omicron is much more transmissible than Delta, it’s likely more than 17 will have caught the virus)
6/ min. ventilation of 6 air changes per hour is advised; if not available, filtration could give added ‘air cleaning’ equivalent to 3 more air changes per hour
7/ clean air standards can lower risk in all buildings.. clean air standards give all businesses a road map to permanent opening without risk of super-spread.. for protection of staff & confidence of customers. #CovidIsAirborne
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