4.7 Article

Testing for COVID-19 during an outbreak within a large UK prison: an evaluation of mass testing to inform outbreak control

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INTERNATIONAL JOURNAL OF INFECTIOUS DISEASES
卷 125, 期 -, 页码 138-144

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ELSEVIER SCI LTD
DOI: 10.1016/j.ijid.2022.10.018

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COVID-19; Prisons; Infectious disease; Outbreak investigation

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This paper describes the results of mass asymptomatic testing for COVID-19 in a male prison in England following an outbreak. The findings show that mass testing can rapidly identify additional cases, particularly asymptomatic cases.
Objectives: The aim of this paper was to describe the results of mass asymptomatic testing for COVID19 in a male prison in England following the declaration of an outbreak. It provides novel data on the implementation of a mass testing regime within a prison during the pandemic. Methods: The paper is an observational evaluation of the mass testing conducted for 6 months following the declaration of a COVID-19 outbreak within a prison. It investigated the incidence of positive cases in both staffand residents using polymerase chain reaction testing. Results: Data from October 2020 until March 2021 was included. A total of 2170 tests were performed by 851 residents and 182 staffmembers; uptake was 48.3% for people living in prison and 30.4% for staff. Overall test positivity was 11.6% (14.3% for residents, 3.0% for staff), with around one-quarter of these reporting symptoms. The prison wing handling new admissions reported the second-lowest positivity rate (9.4%) of the eight wings. Conclusion: Mass testing for COVID-19 over a short space of time can lead to rapid identification of additional cases, particularly asymptomatic cases. Testing that relies on residents and staffreporting symptoms will underestimate the true extent of transmission and will likely lead to a prolonged outbreak. (c) 2022 Published by Elsevier Ltd on behalf of International Society for Infectious Diseases. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

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