深圳市龙华区新冠肺炎流行病学特征分析

Epidemiological characteristics of COVID-19 in Longhua District of Shenzhen

目的对深圳市龙华区新冠肺炎(COVID-19)流行病学特征进行描述,为有效控制疫情提供更多的参考依据。方法对2020年1月15日-3月25日龙华区34例COVID-19病例资料进行整理和流行病学描述性分析。结果34例COVID-19病例中,男性19例,女性15例,中位年龄45岁,中位潜伏期5 d,发病高峰在1月25-26日。从湖北省输入的病例有29例(85.30%),家庭聚集性病例25例(73.53%)。首诊的临床症状主要包括发热24例(70.59%)、咳嗽13例(38.24%)、乏力8例(23.53%)、咽痛7例(20.59%)、全身酸痛6例(17.65%)、头痛5例(14.71%)、腹泻2例(5.88%)和呕吐1例(2.94%)。胸片检查17例,其中双肺多发磨玻璃影13例(76.47%);CT检查12例,其中双肺多发斑片状影或磨玻璃5例(41.67%)。截至2020年3月25日,34例病例中已治愈出院30例(88.24%),住院天数中位数为22(18,32)d;死亡1例(2.94%),危重型1例(2.94%),重型1例(2.94%),普通型和轻型31例(91.18%)。结论深圳市龙华区COVID-19以输入性和家庭聚集性病例为主,加强疫源地返深人员的健康监测和开展密切接触者集中医学观察、主动监测对病例的早发现有重要意义。

Objective To describe the epidemiological characteristics of COVID-19 in Longhua District of Shenzhen,providing more reference for the effective control of the epidemic.Methods The data of 34 cases of COVID-19 in Longhua District from January 15 to March 25,2020 were collected and descriptive epidemiological analysis was conducted.Results Among the 34 COVID-19 cases,there were 19 males and 15 females,with a median age of 45 years old and a median incubation period of 5 days.The peak of incidence was from January 25 to 26.Of the 29 cases(85.30%)imported from Hubei province,25 cases(73.53%)were family clustered.The primary clinical symptoms including fever in 24 cases(70.59%),cough in 13 cases(38.24%),fatigue in 8 cases(23.53%),sore throat in 7 cases(20.59%),systemic pain in 6 cases(17.65%),headache in 5 cases(14.71%),diarrhea in 2 cases(5.88%)and vomiting in 1 case(2.94%).Chest radiography was performed in 17 cases,including 13 cases(76.47%)with multiple groundglass opacities in both lungs.CT imaging examination was performed in 12 cases,including 5 cases(41.67%)with multiple patchy shadows or ground-glass in both lungs.By March 25,2020,30 of the 34 cases(88.24%)had been cured and discharged,and the median length of hospitalization was 22(18,32)days.One case was fatal(2.94%),one case was critical(2.94%),one case was severe(2.94%),31 cases were normal or mild(91.18%).Conclusion COVID-19 cases in Longhua District,Shenzhen were mainly imported and family cluster cases.It is of great significance for early detection to strengthen the health surveillance of people returning from the foci and carry out centralized medical observation and active surveillance of the close contacts.