Efficacy of SARS-CoV-2 wastewater surveillance for detection of COVID-19 at a residential private college.

FEMS microbes Pub Date : 2022-03-17 eCollection Date: 2022-01-01 DOI:10.1093/femsmc/xtac008
Michelle Landstrom, Evan Braun, Ellen Larson, Merrill Miller, Geoffrey H Holm
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Abstract

Many colleges and universities utilized wastewater surveillance testing for SARS-CoV-2 RNA as a tool to help monitor and mitigate the COVID-19 pandemic on campuses across the USA during the 2020-2021 academic year. We sought to assess the efficacy of one such program by analyzing data on relative wastewater RNA levels from residential buildings in relation to SARS-CoV-2 cases identified through individual surveillance testing, conducted largely independent of wastewater results. Almost 80% of the cases on campus were associated with positive wastewater tests, resulting in an overall positive predictive value of 79% (Chi square 48.1, Df = 1, P < 0.001). However, half of the positive wastewater samples occurred in the two weeks following the return of a student to the residence hall following the 10-day isolation period, and therefore were not useful in predicting new infections. When these samples were excluded, the positive predictive value of a positive wastewater sample was 54%. Overall, we conclude that the continued shedding of viral RNA by patients past the time of potential transmission confounds the identification of new cases using wastewater surveillance, and decreases its effectiveness in managing SARS-CoV-2 infections on a residential college campus.

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在一所私立寄宿学院进行 SARS-CoV-2 废水监测以检测 COVID-19 的有效性。
在 2020-2021 学年期间,许多高校利用废水监测检测 SARS-CoV-2 RNA 作为一种工具,帮助监测和缓解 COVID-19 在美国校园内的流行。我们试图通过分析住宅楼废水 RNA 水平与通过个人监测检测发现的 SARS-CoV-2 病例之间的关系数据来评估此类计划的有效性。校园中近 80% 的病例与废水检测结果呈阳性有关,因此总体阳性预测值为 79%(Chi square 48.1,Df = 1,P.
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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CiteScore
3.30
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0.00%
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15 weeks
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