[The epidemiological characteristics of an outbreak of 2019 novel coronavirus diseases (COVID-19) in China].
Identifieur interne : 000A26 ( Ncbi/Merge ); précédent : 000A25; suivant : 000A27[The epidemiological characteristics of an outbreak of 2019 novel coronavirus diseases (COVID-19) in China].
Auteurs :Source :
- Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi [ 0254-6450 ] ; 2020.
Abstract
Objective: An outbreak of 2019 novel coronavirus diseases (COVID-19) in Wuhan, China has spread quickly nationwide. Here, we report results of a descriptive, exploratory analysis of all cases diagnosed as of February 11, 2020. Methods: All COVID-19 cases reported through February 11, 2020 were extracted from China's Infectious Disease Information System. Analyses included: 1) summary of patient characteristics; 2) examination of age distributions and sex ratios; 3) calculation of case fatality and mortality rates; 4) geo-temporal analysis of viral spread; 5) epidemiological curve construction; and 6) subgroup analysis. Results: A total of 72 314 patient records-44 672 (61.8%) confirmed cases, 16 186 (22.4%) suspected cases, 10567 (14.6%) clinical diagnosed cases (Hubei only), and 889 asymptomatic cases (1.2%)-contributed data for the analysis. Among confirmed cases, most were aged 30-79 years (86.6%), diagnosed in Hubei (74.7%), and considered mild (80.9%). A total of 1 023 deaths occurred among confirmed cases for an overall case-fatality rate of 2.3%. The COVID-19 spread outward from Hubei sometime after December 2019 and by February 11, 2020, 1 386 counties across all 31 provinces were affected. The epidemic curve of onset of symptoms peaked in January 23-26, then began to decline leading up to February 11. A total of 1 716 health workers have become infected and 5 have died (0.3%). Conclusions: The COVID-19 epidemic has spread very quickly. It only took 30 days to expand from Hubei to the rest of Mainland China. With many people returning from a long holiday, China needs to prepare for the possible rebound of the epidemic.
DOI: 10.3760/cma.j.issn.0254-6450.2020.02.003
PubMed: 32064853
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">[The epidemiological characteristics of an outbreak of 2019 novel coronavirus diseases (COVID-19) in China].</title></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2020">2020</date><idno type="RBID">pubmed:32064853</idno><idno type="pmid">32064853</idno><idno type="doi">10.3760/cma.j.issn.0254-6450.2020.02.003</idno><idno type="wicri:Area/PubMed/Corpus">000B35</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">000B35</idno><idno type="wicri:Area/PubMed/Curation">000B35</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">000B35</idno><idno type="wicri:Area/PubMed/Checkpoint">000013</idno><idno type="wicri:explorRef" wicri:stream="Checkpoint" wicri:step="PubMed">000013</idno><idno type="wicri:Area/Ncbi/Merge">000A26</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">[The epidemiological characteristics of an outbreak of 2019 novel coronavirus diseases (COVID-19) in China].</title></analytic><series><title level="j">Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi</title><idno type="ISSN">0254-6450</idno><imprint><date when="2020" type="published">2020</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><b>Objective:</b> An outbreak of 2019 novel coronavirus diseases (COVID-19) in Wuhan, China has spread quickly nationwide. Here, we report results of a descriptive, exploratory analysis of all cases diagnosed as of February 11, 2020. <b>Methods:</b> All COVID-19 cases reported through February 11, 2020 were extracted from China's Infectious Disease Information System. Analyses included: 1) summary of patient characteristics; 2) examination of age distributions and sex ratios; 3) calculation of case fatality and mortality rates; 4) geo-temporal analysis of viral spread; 5) epidemiological curve construction; and 6) subgroup analysis. <b>Results:</b> A total of 72 314 patient records-44 672 (61.8%) confirmed cases, 16 186 (22.4%) suspected cases, 10567 (14.6%) clinical diagnosed cases (Hubei only), and 889 asymptomatic cases (1.2%)-contributed data for the analysis. Among confirmed cases, most were aged 30-79 years (86.6%), diagnosed in Hubei (74.7%), and considered mild (80.9%). A total of 1 023 deaths occurred among confirmed cases for an overall case-fatality rate of 2.3%. The COVID-19 spread outward from Hubei sometime after December 2019 and by February 11, 2020, 1 386 counties across all 31 provinces were affected. The epidemic curve of onset of symptoms peaked in January 23-26, then began to decline leading up to February 11. A total of 1 716 health workers have become infected and 5 have died (0.3%). <b>Conclusions:</b> The COVID-19 epidemic has spread very quickly. It only took 30 days to expand from Hubei to the rest of Mainland China. With many people returning from a long holiday, China needs to prepare for the possible rebound of the epidemic.</div></front></TEI><pubmed><MedlineCitation Status="Publisher" Owner="NLM"><PMID Version="1">32064853</PMID><DateRevised><Year>2020</Year><Month>02</Month><Day>17</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0254-6450</ISSN><JournalIssue CitedMedium="Print"><Volume>41</Volume><Issue>2</Issue><PubDate><Year>2020</Year><Month>Feb</Month><Day>17</Day></PubDate></JournalIssue><Title>Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi</Title><ISOAbbreviation>Zhonghua Liu Xing Bing Xue Za Zhi</ISOAbbreviation></Journal><ArticleTitle>[The epidemiological characteristics of an outbreak of 2019 novel coronavirus diseases (COVID-19) in China].</ArticleTitle><Pagination><MedlinePgn>145-151</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.3760/cma.j.issn.0254-6450.2020.02.003</ELocationID><Abstract><AbstractText><b>Objective:</b> An outbreak of 2019 novel coronavirus diseases (COVID-19) in Wuhan, China has spread quickly nationwide. Here, we report results of a descriptive, exploratory analysis of all cases diagnosed as of February 11, 2020. <b>Methods:</b> All COVID-19 cases reported through February 11, 2020 were extracted from China's Infectious Disease Information System. Analyses included: 1) summary of patient characteristics; 2) examination of age distributions and sex ratios; 3) calculation of case fatality and mortality rates; 4) geo-temporal analysis of viral spread; 5) epidemiological curve construction; and 6) subgroup analysis. <b>Results:</b> A total of 72 314 patient records-44 672 (61.8%) confirmed cases, 16 186 (22.4%) suspected cases, 10567 (14.6%) clinical diagnosed cases (Hubei only), and 889 asymptomatic cases (1.2%)-contributed data for the analysis. Among confirmed cases, most were aged 30-79 years (86.6%), diagnosed in Hubei (74.7%), and considered mild (80.9%). A total of 1 023 deaths occurred among confirmed cases for an overall case-fatality rate of 2.3%. The COVID-19 spread outward from Hubei sometime after December 2019 and by February 11, 2020, 1 386 counties across all 31 provinces were affected. The epidemic curve of onset of symptoms peaked in January 23-26, then began to decline leading up to February 11. A total of 1 716 health workers have become infected and 5 have died (0.3%). <b>Conclusions:</b> The COVID-19 epidemic has spread very quickly. It only took 30 days to expand from Hubei to the rest of Mainland China. With many people returning from a long holiday, China needs to prepare for the possible rebound of the epidemic.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><CollectiveName>Novel Coronavirus Pneumonia Emergency Response Epidemiology Team</CollectiveName><AffiliationInfo><Affiliation>Chinese Center for Disease Control and Prevention, Beijing 102206, China.</Affiliation></AffiliationInfo></Author></AuthorList><Language>chi</Language><GrantList CompleteYN="Y"><Grant><GrantID>2018ZX10201002-008-002</GrantID><Agency>Research Based on Epidemic Law of Animal-derived Influenza and Related Influencing Factors, National Science and Technology Foundation of China</Agency><Country></Country></Grant><Grant><GrantID>71934002</GrantID><Agency>Research on Public Health Risk Prevention and Model Innovation under the Background of "the belt and road initiative", National Natural Science Foundation of China</Agency><Country></Country></Grant></GrantList><PublicationTypeList><PublicationType UI="D004740">English Abstract</PublicationType><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2020</Year><Month>02</Month><Day>17</Day></ArticleDate></Article><MedlineJournalInfo><Country>China</Country><MedlineTA>Zhonghua Liu Xing Bing Xue Za Zhi</MedlineTA><NlmUniqueID>8208604</NlmUniqueID><ISSNLinking>0254-6450</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><OtherAbstract Type="Publisher" Language="chi"><AbstractText><b>目的：</b> 新型冠状病毒肺炎在武汉暴发流行以来，已在全国范围内蔓延。对截至2020年2月11日中国内地报告所有病例的流行病学特征进行描述和分析。 <b>方法：</b> 选取截至2020年2月11日中国内地传染病报告信息系统中上报所有新型冠状病毒肺炎病例。分析包括：①患者特征； ②病死率；③年龄分布和性别比例；④疾病传播的时空特点； ⑤所有病例、湖北省以外病例和医务人员病例的流行病学曲线。 <b>结果：</b> 中国内地共报告72 314例病例，其中确诊病例44 672例（61.8%），疑似病例16 186例(22.4%)，临床诊断病例10 567例（14.6%），无症状感染者889例（1.2%）。在确诊病例中，大多数年龄在30～79岁(86.6%)，湖北省(74.7%)，轻症病例为主(80.9%)。确诊病例中，死亡1 023例，粗病死率为2.3%。个案调查结果提示，疫情在2019年12月从湖北向外传播，截至2020年2月11日，全国31个省的1 386个县区受到了影响。流行曲线显示在1月23－26日左右达到峰值，并且观察到发病数下降趋势。截至2月11日，共有1 716名医务工作者感染，其中5人死亡，粗病死率为0.3%。 <b>结论：</b> 新型冠状病毒肺炎传播流行迅速，从首次报告病例日后30 d蔓延至31个省(区/市)，疫情在1月24－26日达到首个流行峰，2月1日出现单日发病异常高值，而后逐渐下降。随着人们返回工作岗位，需积极应对可能出现的疫情反弹。.</AbstractText></OtherAbstract><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">2019 Novel Coronavirus</Keyword><Keyword MajorTopicYN="N">Epidemiological characteristics</Keyword><Keyword MajorTopicYN="N">Outbreak</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2020</Year><Month>2</Month><Day>18</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2020</Year><Month>2</Month><Day>18</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2020</Year><Month>2</Month><Day>18</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>aheadofprint</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">32064853</ArticleId><ArticleId IdType="doi">10.3760/cma.j.issn.0254-6450.2020.02.003</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list></list><tree></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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