Early detection of SARS-CoV-2 infection cases or outbreaks at nursing homes by targeted wastewater tracking
Objectives Near-source tracking of SARS-CoV-2 RNA in the sewage drains serving particular buildings may allow rapid identification of SARS-CoV-2 infection cases or local outbreaks. In this pilot study, we investigated whether this was the case for nursing homes (NH). Methods The study involved five NH (from A to E) affiliated to the Clínico-Malvarrosa Health Department, Valencia (Spain). These were nursing or mixed nursing/care homes of different sizes, altogether providing care for 472 residents attended by a staff of 309. Near-source sewage samples were screened for presence of SARS-CoV-2 RNA by RT-qPCR at least 5 days per week during the study period. SARS-CoV-2 RNA testing in nasopharyngeal swabs from residents and staff was performed with the TaqPath COVID-19 Combo Kit (Thermo Fisher Scientific, Massachusetts, USA). Results SARS-CoV-2 RNA was detected in wastewater samples from four of the five NH. SARS-CoV-2 infection cases were documented in three of these four NH. Of the two NH without SARS-CoV-2 infection cases, no SARS-CoV-2 RNA was detected in sewer samples from one facility, while it was repeatedly detected in samples from the other. Presence of SARS-CoV-2 RNA in sewage preceded identification of isolated cases among residents or staff or outbreak declaration in two NH, with lag times ranging from 5 to 19 days. Conclusion Our study demonstrated that intermittent or persistent detection of SARS-CoV-2 RNA in NH sewers can provide an early warning of subsequent individual cases or outbreaks in these facilities.
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MedRxiv
2021-01-22
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Subjects: | SARS-CoV-2 RNA, Nursing homes, Wastewater, Near-source tracking, COVID-19 outbreak, |
Online Access: | http://hdl.handle.net/10261/228332 |
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dig-iata-es-10261-2283322021-02-06T04:37:40Z Early detection of SARS-CoV-2 infection cases or outbreaks at nursing homes by targeted wastewater tracking Davó, Laura Seguí, Raimundo Botija, Pilar Beltrán, María José Albert, Eliseo Torres, Ignacio López-Fernández, Pablo Ángel Ortí, Rafael Maestre, Juan Francisco Sánchez Moragas, Gloria Navarro, David SARS-CoV-2 RNA Nursing homes Wastewater Near-source tracking COVID-19 outbreak Objectives Near-source tracking of SARS-CoV-2 RNA in the sewage drains serving particular buildings may allow rapid identification of SARS-CoV-2 infection cases or local outbreaks. In this pilot study, we investigated whether this was the case for nursing homes (NH). Methods The study involved five NH (from A to E) affiliated to the Clínico-Malvarrosa Health Department, Valencia (Spain). These were nursing or mixed nursing/care homes of different sizes, altogether providing care for 472 residents attended by a staff of 309. Near-source sewage samples were screened for presence of SARS-CoV-2 RNA by RT-qPCR at least 5 days per week during the study period. SARS-CoV-2 RNA testing in nasopharyngeal swabs from residents and staff was performed with the TaqPath COVID-19 Combo Kit (Thermo Fisher Scientific, Massachusetts, USA). Results SARS-CoV-2 RNA was detected in wastewater samples from four of the five NH. SARS-CoV-2 infection cases were documented in three of these four NH. Of the two NH without SARS-CoV-2 infection cases, no SARS-CoV-2 RNA was detected in sewer samples from one facility, while it was repeatedly detected in samples from the other. Presence of SARS-CoV-2 RNA in sewage preceded identification of isolated cases among residents or staff or outbreak declaration in two NH, with lag times ranging from 5 to 19 days. Conclusion Our study demonstrated that intermittent or persistent detection of SARS-CoV-2 RNA in NH sewers can provide an early warning of subsequent individual cases or outbreaks in these facilities. No 2021-02-02T12:47:42Z 2021-02-02T12:47:42Z 2021-01-22 preprint http://purl.org/coar/resource_type/c_816b MedRxiv: 10.1101/2021.01.21.21249640 (2021) http://hdl.handle.net/10261/228332 10.1101/2021.01.21.21249640 en Preprint https://doi.org/10.1101/2021.01.21.21249640 Sí open MedRxiv |
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SARS-CoV-2 RNA Nursing homes Wastewater Near-source tracking COVID-19 outbreak SARS-CoV-2 RNA Nursing homes Wastewater Near-source tracking COVID-19 outbreak |
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SARS-CoV-2 RNA Nursing homes Wastewater Near-source tracking COVID-19 outbreak SARS-CoV-2 RNA Nursing homes Wastewater Near-source tracking COVID-19 outbreak Davó, Laura Seguí, Raimundo Botija, Pilar Beltrán, María José Albert, Eliseo Torres, Ignacio López-Fernández, Pablo Ángel Ortí, Rafael Maestre, Juan Francisco Sánchez Moragas, Gloria Navarro, David Early detection of SARS-CoV-2 infection cases or outbreaks at nursing homes by targeted wastewater tracking |
description |
Objectives Near-source tracking of SARS-CoV-2 RNA in the sewage drains serving particular buildings may allow rapid identification of SARS-CoV-2 infection cases or local outbreaks. In this pilot study, we investigated whether this was the case for nursing homes (NH).
Methods The study involved five NH (from A to E) affiliated to the Clínico-Malvarrosa Health Department, Valencia (Spain). These were nursing or mixed nursing/care homes of different sizes, altogether providing care for 472 residents attended by a staff of 309. Near-source sewage samples were screened for presence of SARS-CoV-2 RNA by RT-qPCR at least 5 days per week during the study period. SARS-CoV-2 RNA testing in nasopharyngeal swabs from residents and staff was performed with the TaqPath COVID-19 Combo Kit (Thermo Fisher Scientific, Massachusetts, USA).
Results SARS-CoV-2 RNA was detected in wastewater samples from four of the five NH. SARS-CoV-2 infection cases were documented in three of these four NH. Of the two NH without SARS-CoV-2 infection cases, no SARS-CoV-2 RNA was detected in sewer samples from one facility, while it was repeatedly detected in samples from the other. Presence of SARS-CoV-2 RNA in sewage preceded identification of isolated cases among residents or staff or outbreak declaration in two NH, with lag times ranging from 5 to 19 days.
Conclusion Our study demonstrated that intermittent or persistent detection of SARS-CoV-2 RNA in NH sewers can provide an early warning of subsequent individual cases or outbreaks in these facilities. |
format |
preprint |
topic_facet |
SARS-CoV-2 RNA Nursing homes Wastewater Near-source tracking COVID-19 outbreak |
author |
Davó, Laura Seguí, Raimundo Botija, Pilar Beltrán, María José Albert, Eliseo Torres, Ignacio López-Fernández, Pablo Ángel Ortí, Rafael Maestre, Juan Francisco Sánchez Moragas, Gloria Navarro, David |
author_facet |
Davó, Laura Seguí, Raimundo Botija, Pilar Beltrán, María José Albert, Eliseo Torres, Ignacio López-Fernández, Pablo Ángel Ortí, Rafael Maestre, Juan Francisco Sánchez Moragas, Gloria Navarro, David |
author_sort |
Davó, Laura |
title |
Early detection of SARS-CoV-2 infection cases or outbreaks at nursing homes by targeted wastewater tracking |
title_short |
Early detection of SARS-CoV-2 infection cases or outbreaks at nursing homes by targeted wastewater tracking |
title_full |
Early detection of SARS-CoV-2 infection cases or outbreaks at nursing homes by targeted wastewater tracking |
title_fullStr |
Early detection of SARS-CoV-2 infection cases or outbreaks at nursing homes by targeted wastewater tracking |
title_full_unstemmed |
Early detection of SARS-CoV-2 infection cases or outbreaks at nursing homes by targeted wastewater tracking |
title_sort |
early detection of sars-cov-2 infection cases or outbreaks at nursing homes by targeted wastewater tracking |
publisher |
MedRxiv |
publishDate |
2021-01-22 |
url |
http://hdl.handle.net/10261/228332 |
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