Decontamination effect on environmental surfaces microbe in ambulance by dry-fogging hydrogen peroxide_West China Medical Journal

Authors：

ZHOU Yanyan ¹ , CHEN Lan ² ,  XIANG Qian ³

1. Emergency Medicine Department, Sichuan Intergrative Medicine Hospital, Chengdu, Sichuan 610041, P. R. China;
2. Food Physical Chemistry Department, Chengdu Food and Drug Inspection and Research Institute, Chengdu, Sichuan 610045, P. R. China;
3. Healthcare-associated Infection Control Center, Sichuan Academy of Medical Sciences & Sichuan People’s Hospital, Chengdu, Sichuan, 610072, P. R. China;

Corresponding?author：

XIANG Qian, Email: 3all@163.com

Keywords：

Dry-fogging hydrogen peroxide; Ambulance; Environmental surface; Decontamination

DOI：

10.7507/1002-0179.201902008

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ObjectiveTo investigate the disinfection effect of dry-fogging hydrogen peroxide (DFHP) on ambulance inner surfaces.MethodsThis study was carried out using simulated field test and field test from October to December 2018. In the simulated field test, the carriers with Geobacillus stearothemopilus (ATCC12980) spores were placed in 6 places in the ambulance, and disinfected for 60 minutes with DFHP of 0.38–0.72 g/m³. The carriers were cultured for up to 7 days to observe whether the bacteria were eliminated. Before and after the DFHP disinfection, the microbial sampling of the surface in the ambulance was carried out, and the colonies were counted after the cultivation.ResultsThe eliminating rate of the bacteria carriers on the uncovered surface was 100% (20/20), and that of the covered surface was 10% (1/10). The pass rate of microbial sampling was 100% (26/26).ConclusionsThe DFHP had a significant decontamination effect on the ambulance inner uncovered surfaces. The DFHP equipment is automated and their disinfecting quality is consistent, therefore it is suitable for the disinfection of ambulance inner surfaces. But the limitation of disinfection effect on covered surfaces should be avoided.

Citation： ZHOU Yanyan, CHEN Lan, XIANG Qian. Decontamination effect on environmental surfaces microbe in ambulance by dry-fogging hydrogen peroxide. West China Medical Journal, 2019, 34(3): 290-294. doi: 10.7507/1002-0179.201902008 Copy

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1. Otter JA, French GL. Survival of nosocomial bacteria and spores on surfaces and inactivation by hydrogen peroxide vapor. J Clin Microbiol, 2009, 47(1): 205-207.
2. Heckert RA, Best M, Jordan LT, et al. Efficacy of vaporized hydrogen peroxide against exotic animal viruses. Appl Environ Microbiol, 1997, 63(10): 3916-3918.
3. Johnston MD, Lawson S, Otter JA. Evaluation of hydrogen peroxide vapour as a method for the decontamination of surfaces contaminated with Clostridium botulinum spores. J Microbiol Methods, 2005, 60(3): 403-411.
4. Hall L, Otter JA, Chewins J, et al. Use of hydrogen peroxide vapor for deactivation of Mycobacterium tuberculosis in a biological safety cabinet and a room. J Clin Microbiol, 2007, 45(3): 810-815.
5. Kahnert A, Seiler P, Stein M, et al. Decontamination with vaporized hydrogen peroxide is effective against Mycobacterium tuberculosis. Lett Appl Microbiol, 2005, 40(6): 448-452.
6. Boyce JM. New approaches to decontamination of rooms after patients are discharged. Infect Control Hosp Epidemiol, 2009, 30(6): 515-517.
7. 中華人民共和國衛生部. 消毒技術規范（2002年版）. (2002-11-15)[2019-01-01]. http://www.moh.gov.cn/zhjcj/s9139/200804/86d017920ad84e64a90806717719624f.shtml.
8. Hiroyoshi K, Rika Y, Takumi K, et al. Decontamination of environmental surfaces of patient room by hydrogen peroxide vapourised. J Healthc Assoc Infect, 2010, 3(2): 15-18.
9. Ray A, Perez F, Beltramini AM, et al. Use of vaporized hydrogen peroxide decontamination during an outbreak of multidrug-resistant Acinetobacter baumannii infection at a long-term acute care hospital. Infect Control Hosp Epidemiol, 2010, 31(12): 1236-1241.
10. Passaretti CL, Otter JA, Reich NG, et al. An evaluation of environmental decontamination with hydrogen peroxide vapor for reducing the risk of patient acquisition of multidrug-resistant organisms. Clin Infect Dis, 2013, 56(1): 27-35.
11. Boyce JM, Havill NL, Otter JA, et al. Impact of hydrogen peroxidevapor room decontamination on Clostridium difficile environmental contamination and transmission in a healthcare setting. Infect Control Hosp Epidemiol, 2008, 29(8): 723-729.
12. 楊曉梅. 救護車消毒管理探討. 中國消毒學雜志, 2016, 33(9): 927-928.
13. 王陳龍, 姜朝新, 何建安, 等. 救護車車廂消毒現狀. 中國消毒學雜志, 2017, 34(9): 866-868.
14. 余巧珍, 朱恒光. 四種消毒法對降低救護車內物表細菌含量的分析比較. 實驗與檢驗醫學, 2013, 31(6): 630-631.
15. 中華人民共和國國家衛生和計劃生育委員會. 醫院消毒衛生標準: GB 15982－2012, 2012. http://www.moh.gov.cn/zwgkzt/s9488/201410/0e39d3b287e347ccb317a16ae2a4899f.shtml.
16. 中華人民共和國國家衛生和計劃生育委員會. 醫療機構環境表面清潔與消毒管理規范: WS/T 512－2016, 2016. http://www.moh.gov.cn/wjw/s9496/201701/0a2cf2f4e7d749aa920a907a56ed6890.shtml.
17. 張宇杰, 陳兵, 林才經, 等. 福建省救護車藥品配備及消毒情況調查. 中國急救復蘇與災害醫學雜志, 2016, 11(2): 159-161.
18. 蔡冉, 陸燁, 李曄, 等. 汽化過氧化氫對不同材料表面的消毒效果比較. 中國消毒學雜志, 2016, 33(7): 616-618.

West China Medical Journal

Decontamination effect on environmental surfaces microbe in ambulance by dry-fogging hydrogen peroxide

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