上海市青浦区新型冠状病毒肺炎疫情特征分析

林长坡; 黎桂福; 戴燕丽; 於雪琴; 郁晞; 叶开友; 姚正原; 徐瑞芳; 潘俊锋

doi:10.19428/j.cnki.sjpm.2020.20148

上海市青浦区新型冠状病毒肺炎疫情特征分析

Analysis on epidemic characteristics of COVID-19 in Qingpu District of Shanghai

摘要

摘要:
目的了解上海市青浦区新型冠状病毒肺炎(新冠肺炎)疫情的流行病学特征，为新冠肺炎防控提供依据。
方法以青浦区医疗机构发现的新冠肺炎疑似病例为研究对象，描述性分析其发病就诊、临床表现、可疑暴露情况等特征。
结果青浦区共报告53例新冠肺炎疑似病例，其中排除47例，确诊6例。6例确诊病例中自主发病就医的2例，其他方式发现4例；男性占83.3%；首发症状以咳嗽为主；成人病例中有基础性疾病者占75.0%；输入性病例占66.7%。新型冠状病毒核酸检测痰液均为阳性，鼻拭子阳性占50.0%，咽拭子均为阴性。
结论青浦区新冠肺炎病例男性多于女性。痰标本新型冠状病毒阳性率高于鼻拭子，鼻拭子的阳性率高于咽拭子。将预防关口前移，加强道口监测、来沪人员居家或集中健康观察，第一时间发现疑似病例是新冠肺炎疫情防控的关键。

Abstract:
ObjectiveTo analyze epidemic characteristics of COVID-19 epidemic in Qingpu District of Shanghai and provide evidence for prevention and control of COVID-19.
MethodsThe COVID-19 cases diagnosed in the medical facilities in Qingpu District were included in the study.Descriptive epidemiology was employed to describe diagnosis, clinical symptoms and possible exposure.
ResultsThere were 53 suspected cases identified in Qingpu District, 47 of which were excluded and 6 were confirmed.Two confirmed cases were identified when seeking medical treatment and 4 by other means.Of the confirmed cases, 83.3% were male and 66.7% were imported.Their initial symptom was mainly cough.The 75.0% of the confirmed cases had underlying diseases.By PCR testing of SARS-CoV-2, 100.0% of the sputum specimens tested positive, 50.0% of the nasopharyngeal swabs were positive, whereas 100.0% of the throat swabs were negative.
ConclusionCOVID-19 is more common in men than in women.The positive rate of SARS-CoV-2 in sputum samples is highest, followed by nasopharyngeal swabs and throat swabs.It is crucial to implement the countermeasures at earlier stages, such as strengthening the road entrance monitoring, at-home or intensive health observation of foreign visitors for early identification of suspected COVID-19 cases.

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