摘要
目的分析东莞市新型冠状病毒肺炎(COVID-19)疫情的流行特征,为疫情防控提供参考。方法采用横断面研究,收集东莞市COVID-19疫情病例个案信息资料进行统计描述和统计分析。结果截至2021年2月28日,东莞市累计报告136例新冠肺炎病例,其中确诊病例101例,无症状感染者35例。确诊病例以待业人群为主,年龄集中在30岁(29.70%);男性52例,女性49例,男女性别比为1.06∶1;其中,重症病例17例、普通型67例、轻症病例16例、死亡1例;从发病到就诊平均需1.5 d,到确诊平均需5 d。无症状感染者中主要年龄集中在30岁(25.71%);男性24例;女性11例,男女性别比为2.18∶1,多见于学生群体。报告确诊病例数最多的是南城街道(11例);而无症状感染者最多的是大岭山镇(5例)。流行病学史明确者136例,确诊患者中有湖北旅居史68例,无症状感染者中有湖北旅居史10例。确诊患者与无症状感染者的发现途径差异有统计学意义(P<0.05),疾病进程也不尽相同。累计境外输入感染者病例数与累计新增感染者病例数呈高度正相关。结论东莞市新冠确诊病例与无症状感染者的性别、年龄具有一定的相似性,其他流行病学特征均有所差异。疫情由输入性向本地续发过渡,并以境外输入性病例为主。
Objective The epidemiological characteristics of corona virus disease 2019(COVID-19)in Dongguan were analyzed to provide reference for epidemic prevention and control.Methods A cross-sectional study was conducted to collect the information of COVID-19 cases in Dongguan city for statistical description and analysis.Results Up to February 28,2021,a total of 136 cases of COVID-19 had been reported in Dongguan,including 101 confirmed cases and 35 asymptomatic infected people.Most of the confirmed cases were unemployed people,mainly aged 30-years old(29.70%).There were 52 males and 49 females,with a male-to-female ratio of 1.06∶1.Among them,there were 17 severe cases,67 moderate cases,16 mild cases and 1 death.It took an average of 1.5 days from onset to see a doctor and 5 days from onset to confirm diagnosis.The majority of asymptomatic infected patients were aged 30-years old(25.71%).There were 24 males and 11 females,with a male-to-female ratio of 2.18∶1,which was more common among students.The largest number of confirmed cases had been reported in Nancheng district(11),while asymptomatic infections were reported in Dalingshan town(5).There were 136 patients with clear epidemiological history;68 of the confirmed patients had travel history in Hubei province,and 10 of the asymptomatic infected patients had travel history in Hubei province.There was a statistically significant difference in the way of detection between confirmed and asymptomatic infected patients(P<0.05),and the course of disease was also different.The cumulative number of infected cases imported from abroad was highly positively correlated with the cumulative number of newly infected cases.Conclusions The confirmed cases of COVID-19 in Dongguan were similar to asymptomatic infected people in gender and age,while other epidemiological characteristics were different.The epidemic changed from imported cases to local outbreaks,and became mainly imported cases from abroad.
作者
杨辉煌
罗玲
张伟健
沈佳伦
李清清
丁元林
张巧利
于海兵
YANG Hui-huang;LUO Ling;ZHANG Wei-jian;SHEN Jia-lun;LI Qing-qing;DING Yuan-lin;ZHANG Qiao-li;YU Hai-bin(School of Public Health,Guangdong Medical University,Dongguan,Guangdong 523808;Dongguan Center for Disease Control and Prevention,Dongguan.,Guangdong 523808;Dongguan Health Bureau,Dongguan,Guangdong 523808,China)
出处
《热带医学杂志》
CAS
2021年第5期552-555,共4页
Journal of Tropical Medicine
基金
广东省教育厅新冠肺炎疫情防控科研专项(2020KZDZX1100)
2020年东莞市新型冠状病毒肺炎防疫防治技术研究及推广应急攻关专项项目(202071715044112)。
作者简介
杨辉煌(1994-),男,在读硕士研究生,研究方向:流行病与统计学;通信作者:于海兵,E-mail:hby616688@gdmu.cn;通信作者:张巧利,E-mail:zql@dg.gov.cn。
