The coronavirus disease 2019 (COVID-19) epidemic has had a serious impact in the world. In the absence of vaccines and therapeutic drugs, disinfection has become an important technical means to block the spread of the virus. By analyzing the characteristics of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), we studied a series of disinfection technologies for COVID-19. During the outbreak of COVID-19, Jinan Second Center for Disease Control and Prevention disinfected the houses of the cases to be investigated in a community. The effectiveness of the disinfection technology was verified through the process of disinfection preparation, sampling before disinfection, field disinfection, sampling after disinfection and evaluation of disinfection effect. Compared the data before and after disinfection, the killing rate of the total bacterial colonies in the air and on the surface of the object was more than or equal to 90%, and no SARS-CoV-2 was detected after disinfection. The results show that the disinfection effect of the disinfection technology meets the standard. Finally, through the analysis of the wrong way of disinfection and the harm of over disinfection, the importance of scientific disinfection and precise disinfection are emphasized, and the research has a good guiding value for prevention and control of the epidemic.
新型冠状病毒肺炎（COVID-19）疫情对全球造成了严重影响，在没有疫苗和特效治疗药物的情况下，消毒成为阻断病毒传播的重要技术手段。本文通过对新型冠状病毒的相关特性分析，研究了针对新型冠状病毒肺炎的一系列消毒技术。在新型冠状病毒肺炎疫情暴发期间，济南市第二疾病预防控制中心对一小区新型冠状病毒肺炎待排查病例住家进行了现场消毒，分别通过消毒准备、消毒前采样、现场消毒、消毒后采样和消毒效果评价等过程，验证了所研究的消毒技术的有效性。对消毒前后的采样数据进行对比，结果显示空气、物体表面细菌菌落总数的杀灭率 ≥ 90%，且消毒后均未检出新型冠状病毒，结果表明该消毒技术的消毒效果符合标准。最后，通过对错误的消毒方式和过度消毒的危害进行分析，强调了“科学消毒、精准消毒”的重要性，对疫情防控工作具有较好的指导价值。.
Keywords: coronavirus disease 2019; epidemic prevention and control; field disinfection; practical experience; scientific disinfection.