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Environmental contamination by SARS-CoV-2 in a designated hospital for coronavirus disease 2019.
Am J Infect Control. 2020 08; 48(8):910-914.AJ

Abstract

BACKGROUND

Coronavirus disease 2019 (COVID-19) is characterized by risk of nosocomial transmission; however, the extent of environmental contamination and its potential contribution of environmental contamination to SARS-CoV-2 transmission are poorly understood. This study aimed to investigate whether environmental contamination may play a role in SARS-CoV-2 transmission.

METHODS

Air samples were collected by natural precipitation, and environmental surface samples were collected by conventional surface swabbing. SARS-CoV-2 RNA detection was performed using reverse transcription polymerase chain reaction.

RESULTS

Viral RNA was not detected in the 44 air samples. The positive rates in 200 environmental surface samples in medical areas (24.83%) was higher than that in living quarters (3.64%), with a significant difference (P < .05). The positive rates were 25.00% and 37.50% for the general isolation ward and intensive care unit, respectively, and no significant difference was observed between them (P = .238). The top 5 sampling sites with a positive rate in medical areas were beepers (50.00%), water machine buttons (50.00%), elevator buttons (42.86%), computer mouses (40.00%), and telephones (40.00%).

CONCLUSIONS

Most of the touchable surfaces in the designated hospital for COVID-19 were heavily contaminated, suggesting that the environment is a potential medium of disease transmission. These results emphasize the need for strict environmental surface hygiene practices and enhanced hand hygiene to prevent the spread of the virus.

Authors+Show Affiliations

Healthcare-Associated Infection Management Office, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China.Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.Healthcare-Associated Infection Management Office, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China.Healthcare-Associated Infection Management Office, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China.Laboratory Department, Wuhan No. 7 Hospital, Wuhan, Hubei, China.Department of Nosocomial Infection Management, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China. Electronic address: 565438308@qq.com.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32407826

Citation

Wu, Songjie, et al. "Environmental Contamination By SARS-CoV-2 in a Designated Hospital for Coronavirus Disease 2019." American Journal of Infection Control, vol. 48, no. 8, 2020, pp. 910-914.
Wu S, Wang Y, Jin X, et al. Environmental contamination by SARS-CoV-2 in a designated hospital for coronavirus disease 2019. Am J Infect Control. 2020;48(8):910-914.
Wu, S., Wang, Y., Jin, X., Tian, J., Liu, J., & Mao, Y. (2020). Environmental contamination by SARS-CoV-2 in a designated hospital for coronavirus disease 2019. American Journal of Infection Control, 48(8), 910-914. https://doi.org/10.1016/j.ajic.2020.05.003
Wu S, et al. Environmental Contamination By SARS-CoV-2 in a Designated Hospital for Coronavirus Disease 2019. Am J Infect Control. 2020;48(8):910-914. PubMed PMID: 32407826.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Environmental contamination by SARS-CoV-2 in a designated hospital for coronavirus disease 2019. AU - Wu,Songjie, AU - Wang,Ying, AU - Jin,Xuelan, AU - Tian,Jia, AU - Liu,Jianzhong, AU - Mao,Yiping, Y1 - 2020/05/12/ PY - 2020/04/05/received PY - 2020/05/02/revised PY - 2020/05/04/accepted PY - 2020/5/15/pubmed PY - 2020/8/11/medline PY - 2020/5/15/entrez KW - Air KW - Disinfection KW - Environmental surface KW - Hand hygiene KW - Hospital-associated infection SP - 910 EP - 914 JF - American journal of infection control JO - Am J Infect Control VL - 48 IS - 8 N2 - BACKGROUND: Coronavirus disease 2019 (COVID-19) is characterized by risk of nosocomial transmission; however, the extent of environmental contamination and its potential contribution of environmental contamination to SARS-CoV-2 transmission are poorly understood. This study aimed to investigate whether environmental contamination may play a role in SARS-CoV-2 transmission. METHODS: Air samples were collected by natural precipitation, and environmental surface samples were collected by conventional surface swabbing. SARS-CoV-2 RNA detection was performed using reverse transcription polymerase chain reaction. RESULTS: Viral RNA was not detected in the 44 air samples. The positive rates in 200 environmental surface samples in medical areas (24.83%) was higher than that in living quarters (3.64%), with a significant difference (P < .05). The positive rates were 25.00% and 37.50% for the general isolation ward and intensive care unit, respectively, and no significant difference was observed between them (P = .238). The top 5 sampling sites with a positive rate in medical areas were beepers (50.00%), water machine buttons (50.00%), elevator buttons (42.86%), computer mouses (40.00%), and telephones (40.00%). CONCLUSIONS: Most of the touchable surfaces in the designated hospital for COVID-19 were heavily contaminated, suggesting that the environment is a potential medium of disease transmission. These results emphasize the need for strict environmental surface hygiene practices and enhanced hand hygiene to prevent the spread of the virus. SN - 1527-3296 UR - https://www.unboundmedicine.com/medline/citation/32407826/Environmental_contamination_by_SARS_CoV_2_in_a_designated_hospital_for_coronavirus_disease_2019_ DB - PRIME DP - Unbound Medicine ER -