{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T05:43:13Z","timestamp":1785735793390,"version":"3.56.0"},"reference-count":13,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2020,6,19]],"date-time":"2020-06-19T00:00:00Z","timestamp":1592524800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003399","name":"Shanghai Municipal Science and Technology Commission","doi-asserted-by":"crossref","award":["20411950100"],"award-info":[{"award-number":["20411950100"]}],"id":[{"id":"10.13039\/501100003399","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100003399","name":"Shanghai Municipal Science and Technology Commission","doi-asserted-by":"crossref","award":["20JC1410200"],"award-info":[{"award-number":["20JC1410200"]}],"id":[{"id":"10.13039\/501100003399","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100003347","name":"Fudan University","doi-asserted-by":"crossref","award":["IDF201007"],"award-info":[{"award-number":["IDF201007"]}],"id":[{"id":"10.13039\/501100003347","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Influenza Resp Viruses"],"published-print":{"date-parts":[[2020,11]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>We used contact tracing to document how COVID\u201019 was transmitted across 5 generations involving 10 cases, starting with an individual who became ill on January 27. We calculated the incubation period of the cases as the interval between infection and development of symptoms. The median incubation period was 6.0\u00a0days (interquartile range, 3.5\u20109.5\u00a0days). The last two generations were infected in public places, 3 and 4\u00a0days prior to the onset of illness in their infectors. Both had certain underlying conditions and comorbidity. Further identification of how individuals transmit prior to being symptomatic will have important consequences.<\/jats:p>","DOI":"10.1111\/irv.12773","type":"journal-article","created":{"date-parts":[[2020,6,19]],"date-time":"2020-06-19T07:08:45Z","timestamp":1592550525000},"page":"610-614","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["Pre\u2010symptomatic transmission of novel coronavirus in community settings"],"prefix":"10.1111","volume":"14","author":[{"given":"Dechuan","family":"Kong","sequence":"first","affiliation":[{"name":"Department of Acute Communicable Diseases Control and Prevention Shanghai Municipal Center for Disease Control and Prevention Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yang","family":"Zheng","sequence":"additional","affiliation":[{"name":"Department of Non\u2010communicable Diseases Surveillance Shanghai Municipal Center for Disease Control and 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China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ruobing","family":"Han","sequence":"additional","affiliation":[{"name":"Department of Acute Communicable Diseases Control and Prevention Shanghai Municipal Center for Disease Control and Prevention Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiao","family":"Yu","sequence":"additional","affiliation":[{"name":"Department of Acute Communicable Diseases Control and Prevention Shanghai Municipal Center for Disease Control and Prevention Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peng","family":"Cui","sequence":"additional","affiliation":[{"name":"Department of Acute Communicable Diseases Control and Prevention Shanghai Municipal Center for Disease Control and Prevention Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chenyan","family":"Jiang","sequence":"additional","affiliation":[{"name":"Department of Acute Communicable Diseases Control and Prevention Shanghai Municipal Center for Disease Control and Prevention Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qiwen","family":"Fang","sequence":"additional","affiliation":[{"name":"Department of Acute Communicable Diseases Control and Prevention Shanghai Municipal Center for Disease Control and Prevention Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4651-9433","authenticated-orcid":false,"given":"Yihan","family":"Lu","sequence":"additional","affiliation":[{"name":"Department of Epidemiology School of Public Health Fudan University Shanghai China"},{"name":"Key Laboratory of Public Health Safety (Ministry of Education) School of Public Health Fudan University Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chen","family":"Fu","sequence":"additional","affiliation":[{"name":"Shanghai Municipal Center for Disease Control and Prevention Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2020,6,19]]},"reference":[{"key":"e_1_2_8_2_1","unstructured":"ChappellB.Coronavirus: COVID\u201019 is now officially a pandemic WHO says.https:\/\/www.npr.org\/sections\/goatsandsoda\/2020\/03\/11\/814474930\/coronavirus\u2010covid\u201019\u2010is\u2010now\u2010officially\u2010a\u2010pandemic\u2010who\u2010says. 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