When a clustered coronavirus disease 2019 epidemic occurs, how to prevent and control hospital infection is a challenge faced by each medical institution. Under the normalization situation, building an effective prevention and control system is the premise and foundation for medical institutions to effectively prevent and control infection when dealing with clustered epidemics. According to the principles of control theory, medical institutions should quickly switch to an emergency state, and effectively deal with the external and internal infection risks brought by clustered epidemics by strengthening source control measures, engineering control measures, management control measures and personal protection measures. This article summarizes the experience of handling clustered outbreaks in medical institutions in the prevention and control of coronavirus disease 2019, and aims to provide a reference for medical institutions to take effective prevention and control measures when dealing with clustered outbreaks.
Citation：
CAI Meng, LIU Juyuan. Infection risk and prevention and control measures of nosocomial infection in urban or regional clustered epidemic. West China Medical Journal, 2022, 37(3): 326-329. doi: 10.7507/1002-0179.202202070
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Copyright © the editorial department of West China Medical Journal of West China Medical Publisher. All rights reserved
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- 2. 国家卫生健康委员会. 关于印发医疗机构内新型冠状病毒感染预防与控制技术指南（第三版）的通知: 联防联控机制综发〔2021〕96 号. (2021-09-08)[2022-02-14]. http://www.nhc.gov.cn/xcs/gzzcwj/202109/c4082ed2db674c6eb369dd0ca58e6d30.shtml.
- 3. World Health Organization. Infection prevention and control of epidemic- and pandemic-prone acute respiratory diseases in health care: WHO interim guidelines. (2007-06-01)[2022-02-14]. https://www.who.int/publications/i/item/WHO-CDS-EPR-2007-6.
- 4. Hellewell J, Russell TW, SAFER Investigators and Field Study Team, et al. Estimating the effectiveness of routine asymptomatic PCR testing at different frequencies for the detection of SARS-CoV-2 infections. BMC Med, 2021, 19(1): 106.
- 5. Schneider S, Piening B, Nouri-Pasovsky PA, et al. SARS-coronavirus-2 cases in healthcare workers may not regularly originate from patient care: lessons from a university hospital on the underestimated risk of healthcare worker to healthcare worker transmission. Antimicrob Resist Infect Control, 2020, 9(1): 192.
- 6. Sickbert-Bennett EE, Samet JM, Clapp PW, et al. Filtration efficiency of hospital face mask alternatives available for use during the COVID-19 pandemic. JAMA Intern Med, 2020, 180(12): 1607-1612.
- 7. Yang HJ, Yoon H, Kang SY, et al. Respiratory protection effect of ear-loop-type KF94 masks according to the wearing method in COVID-19 pandemic: a randomized, open-label study. J Korean Med Sci, 2021, 36(28): e209.
- 8. Centers for Disease Control and Prevention. How to use your N95 respirator. (2022-01-25)[2022-02-14]. https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/use-n95-respirator.html.
