济南市一起新型冠状病毒肺炎聚集性疫情调查  

Epidemiological investigation of a cluster associated w ith corona virus disease 2019 in Jinan City,China

作　　者：赵梦娇[1] 刘仲[1] 李战[1] 常彩云[1] 赵小冬[1] 耿兴义[1] ZHAO Mengjiao;LIU Zhong;LI Zhan;CHANG Caiyun;ZHAO Xiaodong;Geng Xingyi(Emergency Management Office,Jinan Municipal Center for Disease Control and Prevention,Jinan 250021,Shandong,China)

机构地区：[1]济南市疾病预防控制中心应急管理办公室,山东济南250021

出　　处：《山东大学学报（医学版）》2020年第4期44-48,共5页Journal of Shandong University:Health Sciences

摘　　要：目的调查一起新型冠状病毒肺炎聚集性疫情的流行病学特征、感染来源和传播途径,为制定防控策略提供依据。方法对4例病例(A^D)开展现场流行病学调查,内容包括基本信息、发病诊疗经过、暴露史和密切接触者排查。结果病例A、B、C均有发热、乏力、肌肉酸痛等症状,病例D为隐性感染者,4例病例CT均显示有肺炎病变。4例病例发病到就诊时间间隔为0~3 d,发病到住院时间间隔为1~7 d。病例B和病例D分别为病例A和病例C的密切接触者。病例A、C、D为同事关系,发病前均前往北京、泰安等地参加公司聚会。病例A和B为父女关系。结论本起疫情为外地聚会导致的感染,并引起家庭内传播。病例A、C和D可能是在北京开会期间感染,病例B是密切接触病例A导致的感染。应加强密切接触者排查、隔离和检测,减少人员聚集,密切关注隐性感染者。Objective To investigate the epidemiological characteristics,source of infection,and transmission route of a cluster associated w ith the corona virus disease 2019(COVID-19),and to provide evidence for prevention and control strategies.Methods Field epidemiological investigation and analysis w ere performed on 4 cases(A-D).The survey contents included basic information,onset of cases,diagnosis and treatment,exposure history and close contacts.Results Cases A,B,and C all had symptoms such as fever,fatigue,and muscle soreness.Case D w as an asymptomatic case.Computed tomography show ed interstitial hyperplasia w ith infection in all of the patients lungs.The interval from onset to treatment w as 0-3 days,and the interval from onset to hospitalization w as 1-7 days.Case B w as the close contact of case A,and case D w as the close contact of case C,respectively.Cases A,C,and D w ere colleagues,and they all w ent to Beijing,Tai an and other places to participate in the company s party activities before the onset.Cases A and B w ere father-daughter relationship.Conclusion The outbreak w as an infection caused by company gatherings and families infection.Cases A,C,and D may have been infected during a meeting in Beijing,and case B w as an infection caused by exposure to case A.Investigation,isolation and testing of close contacts should be strengthened to reduce the concentration of personnel and close attention should be paid to asymptomatic cases.

关 键 词：新型冠状病毒肺炎 流行病 现场调查 

分 类 号：R511.7[医药卫生—内科学]