4.5 Article

Evaluation of disinfection procedures in a designated hospital for COVID-19

期刊

AMERICAN JOURNAL OF INFECTION CONTROL
卷 49, 期 4, 页码 447-451

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MOSBY-ELSEVIER
DOI: 10.1016/j.ajic.2020.08.028

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SARS-CoV-2; Isolation wards; Surfaces; Sewage

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The study revealed that routine disinfection procedures in the hospital were effective in reducing the risk of healthcare associated infections, with only two positive samples for viral detection suggesting the need for more attention to disinfect overlooked areas. Though viral RNA was detected in both surface and sewage samples, all positive samples were negative for viral culture.
Background: Coronavirus disease 2019 has spread globally and been a public health emergency worldwide. It is important to reduce the risk of healthcare associated infections among the healthcare workers and patients. This study aimed to investigate the contamination of environment in isolation wards and sewage, and assess the quality of routine disinfection procedures in our hospital. Methods: Routine disinfection procedures were performed 3-times a day in general isolation wards and 6 times a day in isolated ICU wards in our hospital. Environmental surface samples and sewage samples were collected for viral RNA detection. Severe acute respiratory syndrome coronavirus 2 RNA detection was performed with quantitative reverse transcription polymerase chain reaction. Results: A total of 163 samples were collected from February 6 to April 4. Among 122 surface samples, 2 were positive for severe acute respiratory syndrome coronavirus 2 RNA detection. One was collected from the flush button of the toilet bowl, and the other was collected from a hand-basin. Although 10 of the sewage samples were positive for viral RNA detection, all positive samples were negative for viral culture. Conclusion: These results revealed the routine disinfection procedures in our hospital were effective in reducing the potential risk of healthcare associated infection. Two surface samples were positive for viral detection, suggesting that more attention should be paid when disinfecting places easy to be ignored. ? 2020 Association for Professionals in Infection Control and Epidemiology, Inc. Published by Elsevier Inc. All rights reserved.

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