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Air and Environmental Contamination Caused by COVID-19 Patients: a Multi-Center Study.
J Korean Med Sci. 2020 Sep 21; 35(37):e332.JK

Abstract

BACKGROUND

The purpose of this study was to determine the extent of air and surface contamination of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) in four health care facilities with hospitalized coronavirus disease 2019 (COVID-19) patients.

METHODS

We investigated air and environmental contamination in the rooms of eight COVID-19 patients in four hospitals. Some patients were in negative-pressure rooms, and others were not. None had undergone aerosol-generating procedures. On days 0, 3, 5, and 7 of hospitalization, the surfaces in the rooms and anterooms were swabbed, and air samples were collected 2 m from the patient and from the anterooms.

RESULTS

All 52 air samples were negative for SARS-CoV-2 RNA. Widespread surface contamination of SARS-CoV-2 RNA was observed. In total, 89 of 320 (27%) environmental surface samples were positive for SARS-CoV-2 RNA. Surface contamination of SARS-CoV-2 RNA was common in rooms without surface disinfection and in rooms sprayed with disinfectant twice a day. However, SARS-CoV-2 RNA was not detected in a room cleaned with disinfectant wipes on a regular basis.

CONCLUSION

Our data suggest that remote (> 2 m) airborne transmission of SARS-CoV-2 from hospitalized COVID-19 patients is uncommon when aerosol-generating procedures have not been performed. Surface contamination was widespread, except in a room routinely cleaned with disinfectant wipes.

Authors+Show Affiliations

Department of Infectious Diseases, Chonnam National University Medical School, Gwangju, Korea.Department of Laboratory Medicine, Chonnam National University Medical School, Gwangju, Korea.Department of Infectious Disease, Keimyung University Dongsan Hospital, Daegu, Korea.Department of Infectious Diseases, Chonnam National University Medical School, Gwangju, Korea.Department of Infectious Diseases, Chonnam National University Medical School, Gwangju, Korea.Office for Infection Control, Chonnam National University Hwasun Hospital, Hwasun, Korea.Office for Infection Control, Chonnam National University Hwasun Hospital, Hwasun, Korea.Department of Laboratory Medicine, Chonnam National University Medical School, Gwangju, Korea. sjkee1968@naver.com.Department of Infectious Diseases, Chonnam National University Medical School, Gwangju, Korea. haroc153@naver.com.

Pub Type(s)

Journal Article
Multicenter Study

Language

eng

PubMed ID

32959546

Citation

Kim, Uh Jin, et al. "Air and Environmental Contamination Caused By COVID-19 Patients: a Multi-Center Study." Journal of Korean Medical Science, vol. 35, no. 37, 2020, pp. e332.
Kim UJ, Lee SY, Lee JY, et al. Air and Environmental Contamination Caused by COVID-19 Patients: a Multi-Center Study. J Korean Med Sci. 2020;35(37):e332.
Kim, U. J., Lee, S. Y., Lee, J. Y., Lee, A., Kim, S. E., Choi, O. J., Lee, J. S., Kee, S. J., & Jang, H. C. (2020). Air and Environmental Contamination Caused by COVID-19 Patients: a Multi-Center Study. Journal of Korean Medical Science, 35(37), e332. https://doi.org/10.3346/jkms.2020.35.e332
Kim UJ, et al. Air and Environmental Contamination Caused By COVID-19 Patients: a Multi-Center Study. J Korean Med Sci. 2020 Sep 21;35(37):e332. PubMed PMID: 32959546.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Air and Environmental Contamination Caused by COVID-19 Patients: a Multi-Center Study. AU - Kim,Uh Jin, AU - Lee,Seung Yeob, AU - Lee,Ji Yeon, AU - Lee,Ahrang, AU - Kim,Seung Eun, AU - Choi,Ok Ja, AU - Lee,Ji Suk, AU - Kee,Seung Jung, AU - Jang,Hee Chang, Y1 - 2020/09/21/ PY - 2020/07/06/received PY - 2020/09/03/accepted PY - 2020/9/22/entrez PY - 2020/9/23/pubmed PY - 2020/10/6/medline KW - Droplet KW - Environmental Sampling KW - SARS-CoV-2 KW - Transmission SP - e332 EP - e332 JF - Journal of Korean medical science JO - J Korean Med Sci VL - 35 IS - 37 N2 - BACKGROUND: The purpose of this study was to determine the extent of air and surface contamination of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) in four health care facilities with hospitalized coronavirus disease 2019 (COVID-19) patients. METHODS: We investigated air and environmental contamination in the rooms of eight COVID-19 patients in four hospitals. Some patients were in negative-pressure rooms, and others were not. None had undergone aerosol-generating procedures. On days 0, 3, 5, and 7 of hospitalization, the surfaces in the rooms and anterooms were swabbed, and air samples were collected 2 m from the patient and from the anterooms. RESULTS: All 52 air samples were negative for SARS-CoV-2 RNA. Widespread surface contamination of SARS-CoV-2 RNA was observed. In total, 89 of 320 (27%) environmental surface samples were positive for SARS-CoV-2 RNA. Surface contamination of SARS-CoV-2 RNA was common in rooms without surface disinfection and in rooms sprayed with disinfectant twice a day. However, SARS-CoV-2 RNA was not detected in a room cleaned with disinfectant wipes on a regular basis. CONCLUSION: Our data suggest that remote (> 2 m) airborne transmission of SARS-CoV-2 from hospitalized COVID-19 patients is uncommon when aerosol-generating procedures have not been performed. Surface contamination was widespread, except in a room routinely cleaned with disinfectant wipes. SN - 1598-6357 UR - https://www.unboundmedicine.com/medline/citation/32959546/Air_and_Environmental_Contamination_Caused_by_COVID_19_Patients:_a_Multi_Center_Study_ DB - PRIME DP - Unbound Medicine ER -