四川省新型冠状病毒肺炎的流行特征分析

目的 分析四川省新型冠状病毒肺炎（corona virus disease 2019, COVID - 19）的流行特征，为疫情防控工作提供参考。方法 利用四川省及四川省各市（州）的卫生健康委员会官方网站获取四川省2020年1月21日 - 2020年4月15日的新型冠状病毒肺炎疫情数据进行流行病学分析。结果 2020年1月21日 - 2020年4月15日，四川省累计确诊新型冠状病毒肺炎患者560例，其中境外输入21例，累计确诊病例最多的3个市（州）分别是成都市165例，甘孜藏族自治州78例，达州市42例；截止2020年4月15日，四川省560名确诊患者中，治愈出院552例，治愈率98.57%，死亡3例，病死率0.54%，目前在院隔离治疗5例（均为境外输入），未治愈率0.89%；现有无症状感染者9例。确诊病例中，男性病例多余女性病例，年龄分布为46 d～82岁，死亡病例均有高血压、糖尿病、冠心病等慢性基础性疾病。结论 四川省新型冠状病毒肺炎疫情基本得以控制，疫情防控取得了阶段性成效，但随着境外新冠肺炎形势的日益严峻，境外输入病例的防控不可怠慢。应结合人群分布特征，对婴幼儿、老年群体以及慢性病患者采取重点防控措施。

Epidemiological characteristics of corona virus disease 2019 in Sichuan

This study aimed to analyze the epidemiological characteristics of corona virus disease 2019(COVID-19) in Sichuan province, and provide reference for the prevention and control work. Methods The epidemic data of the COVID-19 from January 21st, 2020 to April 15th, 2020 in Sichuan province were obtained from the official website of the health commission of Sichuan province for epidemiological analysis. Results From January 21 stto April 15 th, 2020, a total of560 cases of COVID-19 were confirmed in Sichuan, including 21 cases imported from overseas. The three cities with the most confirmed cases were Chengdu with 165 cases, Ganzi Tibetan autonomous prefecture with 78 cases, and Dazhou with 42 cases. By April 15, 2020, 552 cases had been cured and discharged, with a cure rate of 98.57%. And there werw 3 death cases, with a fatality rate of 0.54%. Five patients were isolated and treated in the hospital(all imported from abroad), and the uncured rate was 0.89%. There were 9 cases of asymptomatic infection. Among the confirmed cases, there were more male cases than female cases, with the age distribution ranging from 46 days to 82 years old. All the death cases had chronic basic diseases such as hypertension, diabetes and coronary heart disease. Conclusion The COVID-19 in Sichuan province has been basically controlled, and the prevention and control of COVID-19 has achieved phased results. However, with the increasingly severe situation abroad of COVID-19, the prevention and control of imported cases should not be neglected. In combination with the distribution characteristics of population, key prevention and control measures should be taken for infants, elderly people and patients with chronic diseases.