biostudies-literatureChen YUK Government - The PROTECT COVID-19 National Core Study on Transmission and Environmente055643https://www.ebi.ac.uk/biostudies/studies/S-EPMC9296995biostudies-literatureUnknown12(7)<h4>Objectives</h4>A large number of COVID-19 outbreaks/clusters have been reported in a variety of workplace settings since the start of the pandemic but the rate of outbreak occurrence in the workplace has not previously been assessed. The objectives of this paper are to identify the geographical areas and industrial sectors with a high rate of outbreaks of COVID-19 and to compare infection attack rates by enterprise size and sector in England.<h4>Methods</h4>Public Health England (PHE) HPZone data on COVID-19 outbreaks in workplaces, between 18 May and 12 October 2020, were analysed. The workplace outbreak rates by region and sector were calculated, using National Population Database (NPD) with the total number of workplaces as the denominator. The infection attack rates were calculatedBMJ openCOVID-19 outbreak rates and infection attack rates associated with the workplace: a descriptive epidemiological study.PMC9296995N/AAldridge TChen YFerraro CKhaw FMfalseCOVID-19 outbreak rates and infection attack rates associated with the workplace: a descriptive epidemiological study.<h4>Objectives</h4>A large number of COVID-19 outbreaks/clusters have been reported in a variety of workplace settings since the start of the pandemic but the rate of outbreak occurrence in the workplace has not previously been assessed. The objectives of this paper are to identify the geographical areas and industrial sectors with a high rate of outbreaks of COVID-19 and to compare infection attack rates by enterprise size and sector in England.<h4>Methods</h4>Public Health England (PHE) HPZone data on COVID-19 outbreaks in workplaces, between 18 May and 12 October 2020, were analysed. The workplace outbreak rates by region and sector were calculated, using National Population Database (NPD) with the total number of workplaces as the denominator. The infection attack rates were calculated2022-01-01T00:00:00Z2022 Jul2025-04-04T10:47:30.784Z2025-04-04T10:47:30.784ZS-EPMC92969953585101710.1136/bmjopen-2021-055643