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. 2021 Mar:104:349-353.
doi: 10.1016/j.ijid.2021.01.027. Epub 2021 Jan 16.

COVID-19 within a large UK prison with a high number of vulnerable adults, march to june 2020: An outbreak investigation and screening event

Jennifer Wilburn  1 , Eleanor Blakey  2 , Amy Trindall  2 , Helen Burr  3 , Vince Tanti  3 , Sue Doolan  4 , Ian Palmer  5 , Tony Jewell  6 , Ravikumar Balakrishnan  7
Affiliations

COVID-19 within a large UK prison with a high number of vulnerable adults, march to june 2020: An outbreak investigation and screening event

Jennifer Wilburn et al. Int J Infect Dis. 2021 Mar.

Abstract

Objective: To describe the public health response to COVID-19 within a large prison with a high number of clinically vulnerable residents.

Design: An outbreak investigation was undertaken among all residents and staff. A screening event involved nose and throat swab samples from residents and staff, examined by polymerase chain reaction (PCR). An electronic questionnaire regarding risk factors was distributed to staff.

Results: 58 residents out of 1,156 (5.0%, 95% CI: 3.8 - 6.3) and 129 staff out of 510 (25.3%, 95% CI: 21.5 - 29.1) displayed COVID-19 symptoms, including six and eight confirmed, respectively. Residents reported cough symptoms with no fever (29.3%), followed by a cough and fever (15.5%). 62.1% of symptomatic residents were 50 years or older, placing them in the group at risk for severe COVID-19 disease. Wing I had the highest attack rate (12.5%). 1,063 individuals were swabbed during the 5-day screening event, and all had negative swab results.

Conclusion: The findings were consistent with the hypothesis of a propagating outbreak with decreasing incidence since the peak date of onset. COVID-19 transmission within a high-risk setting was quickly contained, and an explosive outbreak was prevented through a multi-agency public health response.

Keywords: COVID-19; Epidemiology; Outbreak investigation; Prison health.

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Figures

Figure 1
Figure 1
Epidemiological curve of residents and staff within the prison who displayed COVID-19 compatible symptoms, March to June 2020.
See this image and copyright information in PMC

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