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Contamination of SARS-CoV-2 in patient surroundings and on personal protective equipment in a non-ICU isolation ward for COVID-19 patients with prolonged PCR positive status.
Antimicrob Resist Infect Control. 2020 10 29; 9(1):167.AR

Abstract

OBJECTIVES

We performed an environmental sampling study to investigate the environmental contamination of SARS-CoV-2 by COVID-19 patients with prolonged PCR positive status of clinical samples.

METHODS

We sampled the air from rooms for nine COVID-19 patients with illness or positive PCR > 30 days, before and after nasopharyngeal/oropharyngeal swabbing and before and after nebulization treatment. We also sampled patients' surroundings and healthcare workers' personal protection equipment (PPE) in a non-ICU ward. SARS-CoV-2 was detected by PCR.

RESULTS

Eighty-eight samples were collected from high-touch surfaces and floors in patient rooms and toilets, with only the bedsheets of two patients and one toilet positive for SARS-CoV-2. All air samples (n = 34) were negative for SARS-CoV-2. Fifty-five samples collected from PPE were all negative.

CONCLUSION

Contamination of near-patient surroundings was uncommon for COVID-19 patients with prolonged PCR positive status if environmental cleaning/disinfection were performed rigorously. Airborne transmission of SARS-CoV-2 was unlikely in these non-ICU settings.

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Authors+Show Affiliations

Wei L
Department of Infection Control, West China Hospital, Sichuan University, Chengdu, China.
Huang W
Department of Infection Control, West China Hospital, Sichuan University, Chengdu, China.
Lu X
Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China.
Wang Y
Department of Infection Control, West China Hospital, Sichuan University, Chengdu, China.
Cheng L
Department of Infection Control, West China Hospital, Sichuan University, Chengdu, China.
Deng R
Center for Pathogen Research, West China Hospital, Sichuan University, Chengdu, China.
Long H
Center for Pathogen Research, West China Hospital, Sichuan University, Chengdu, China. Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China.
Zong Z
Department of Infection Control, West China Hospital, Sichuan University, Chengdu, China. zongzhiy@scu.edu.cn. Center for Pathogen Research, West China Hospital, Sichuan University, Chengdu, China. zongzhiy@scu.edu.cn. Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China. zongzhiy@scu.edu.cn.

MeSH

BetacoronavirusCOVID-19COVID-19 TestingClinical Laboratory TechniquesCoronavirus InfectionsDisinfectionEnvironmental MicrobiologyEnvironmental MonitoringHealth PersonnelHospitalsHumansPandemicsPatients' RoomsPersonal Protective EquipmentPneumonia, ViralPolymerase Chain ReactionRNA, ViralSARS-CoV-2

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

33121538

Citation

Wei, Li, et al. "Contamination of SARS-CoV-2 in Patient Surroundings and On Personal Protective Equipment in a non-ICU Isolation Ward for COVID-19 Patients With Prolonged PCR Positive Status." Antimicrobial Resistance and Infection Control, vol. 9, no. 1, 2020, p. 167.
Wei L, Huang W, Lu X, et al. Contamination of SARS-CoV-2 in patient surroundings and on personal protective equipment in a non-ICU isolation ward for COVID-19 patients with prolonged PCR positive status. Antimicrob Resist Infect Control. 2020;9(1):167.
Wei, L., Huang, W., Lu, X., Wang, Y., Cheng, L., Deng, R., Long, H., & Zong, Z. (2020). Contamination of SARS-CoV-2 in patient surroundings and on personal protective equipment in a non-ICU isolation ward for COVID-19 patients with prolonged PCR positive status. Antimicrobial Resistance and Infection Control, 9(1), 167. https://doi.org/10.1186/s13756-020-00839-x
Wei L, et al. Contamination of SARS-CoV-2 in Patient Surroundings and On Personal Protective Equipment in a non-ICU Isolation Ward for COVID-19 Patients With Prolonged PCR Positive Status. Antimicrob Resist Infect Control. 2020 10 29;9(1):167. PubMed PMID: 33121538.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Contamination of SARS-CoV-2 in patient surroundings and on personal protective equipment in a non-ICU isolation ward for COVID-19 patients with prolonged PCR positive status. AU - Wei,Li, AU - Huang,Wenzhi, AU - Lu,Xiaojun, AU - Wang,Yantong, AU - Cheng,Linzhi, AU - Deng,Rong, AU - Long,Haiyan, AU - Zong,Zhiyong, Y1 - 2020/10/29/ PY - 2020/05/11/received PY - 2020/10/22/accepted PY - 2020/10/30/entrez PY - 2020/10/31/pubmed PY - 2020/11/13/medline KW - Air sampling KW - COVID-19 KW - Corona virus disease 2019 KW - Environment sampling KW - Healthcare workers KW - Personal protection equipment KW - SARS-CoV-2 SP - 167 EP - 167 JF - Antimicrobial resistance and infection control JO - Antimicrob Resist Infect Control VL - 9 IS - 1 N2 - OBJECTIVES: We performed an environmental sampling study to investigate the environmental contamination of SARS-CoV-2 by COVID-19 patients with prolonged PCR positive status of clinical samples. METHODS: We sampled the air from rooms for nine COVID-19 patients with illness or positive PCR > 30 days, before and after nasopharyngeal/oropharyngeal swabbing and before and after nebulization treatment. We also sampled patients' surroundings and healthcare workers' personal protection equipment (PPE) in a non-ICU ward. SARS-CoV-2 was detected by PCR. RESULTS: Eighty-eight samples were collected from high-touch surfaces and floors in patient rooms and toilets, with only the bedsheets of two patients and one toilet positive for SARS-CoV-2. All air samples (n = 34) were negative for SARS-CoV-2. Fifty-five samples collected from PPE were all negative. CONCLUSION: Contamination of near-patient surroundings was uncommon for COVID-19 patients with prolonged PCR positive status if environmental cleaning/disinfection were performed rigorously. Airborne transmission of SARS-CoV-2 was unlikely in these non-ICU settings. SN - 2047-2994 UR - https://www.unboundmedicine.com/medline/citation/33121538/Contamination_of_SARS_CoV_2_in_patient_surroundings_and_on_personal_protective_equipment_in_a_non_ICU_isolation_ward_for_COVID_19_patients_with_prolonged_PCR_positive_status_ DB - PRIME DP - Unbound Medicine ER -