Longitudinal Monitoring of SARS-CoV-2 RNA on High-Touch Surfaces in a Community Setting.

Autor:	Harvey AP; Civil and Environmental Engineering, Tufts University, Medford, Massachusetts 02155, United States., Fuhrmeister ER; Civil and Environmental Engineering, Tufts University, Medford, Massachusetts 02155, United States., Cantrell ME; Civil and Environmental Engineering, Tufts University, Medford, Massachusetts 02155, United States., Pitol AK; Department of Civil and Environmental Engineering, Imperial College London, London SW7 2AZ, United Kingdom., Swarthout JM; Civil and Environmental Engineering, Tufts University, Medford, Massachusetts 02155, United States., Powers JE; Civil and Environmental Engineering, Tufts University, Medford, Massachusetts 02155, United States., Nadimpalli ML; Civil and Environmental Engineering, Tufts University, Medford, Massachusetts 02155, United States., Julian TR; Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dubendorf CH-8600, Switzerland.; Swiss Tropical and Public Health Institute, Basel CH-4051, Switzerland.; University of Basel, Basel CH-4055, Switzerland., Pickering AJ; Civil and Environmental Engineering, Tufts University, Medford, Massachusetts 02155, United States.; Department of Civil and Environmental Engineering, University of California, Berkeley, California 94720, United States.
Jazyk:	angličtina
Zdroj:	Environmental science & technology letters [Environ Sci Technol Lett] 2021 Feb 09; Vol. 8 (2), pp. 168-175. Date of Electronic Publication: 2020 Dec 14.
DOI:	10.1021/acs.estlett.0c00875
Abstrakt:	Environmental surveillance of surface contamination is an unexplored tool for understanding transmission of SARS-CoV-2 in community settings. We conducted longitudinal swab sampling of high-touch non-porous surfaces in a Massachusetts town during a COVID-19 outbreak from April to June 2020. Twenty-nine of 348 (8.3%) surface samples were positive for SARS-CoV-2 RNA, including crosswalk buttons, trash can handles, and door handles of essential business entrances (grocery store, liquor store, bank, and gas station). The estimated risk of infection from touching a contaminated surface was low (less than 5 in 10,000) by quantitative microbial risk assessment, suggesting fomites play a minimal role in SARS-CoV-2 community transmission. The weekly percentage of positive samples (out of n = 33 unique surfaces per week) best predicted variation in city-level COVID-19 cases with a 7-day lead time. Environmental surveillance of SARS-CoV-2 RNA on high-touch surfaces may be a useful tool to provide early warning of COVID-19 case trends. Competing Interests: The authors declare no competing financial interest. (© 2020 American Chemical Society.)
Databáze:	MEDLINE
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