Epidemiology and clinical course of COVID-19 in Shanghai, China

Autor: Lie Xu, Jun Wu, Fang Zheng, Fei Shan, Danfeng Sun, Xueyun Wu, Shenyang Li, Li Liu, Yuyi Zhang, Yinzhong Shen, Hongzhou Lu, Yun Ling, Jun Chen, Tongyu Zhu, Qingnian Xu, Zhigang Song, Jianliang Zhang, Qin Huang, Tao Li, Yuxin Shi, Zhiping Qian, Zhaoqin Zhu, Feng Li, Joshua B. Mendelsohn
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Emerging Microbes & Infections
article-version (VoR) Version of Record
EMERGING MICROBES & INFECTIONS
ISSN: 2222-1751
Popis: Background: Novel coronavirus pneumonia (COVID-19) is prevalent around the world. We aimed to describe epidemiological features and clinical course in Shanghai. Methods: We retrospectively analysed 325 cases admitted at Shanghai Public Health Clinical Center, between January 20 and February 29, 2020. Results: 47.4% (154/325) had visited Wuhan within 2 weeks of illness onset. 57.2% occurred in 67 clusters; 40% were situated within 53 family clusters. 83.7% developed fever during the disease course. Median times from onset to first medical care, hospitalization and negative detection of nucleic acid by nasopharyngeal swab were 1, 4 and 8 days. Patients with mild disease using glucocorticoid tended to have longer viral shedding in blood and feces. At admission, 69.8% presented with lymphopenia and 38.8% had elevated D-dimers. Pneumonia was identified in 97.5% (314/322) of cases by chest CT scan. Severe-critical patients were 8% with a median time from onset to critical disease of 10.5 days. Half required oxygen therapy and 7.1% high-flow nasal oxygen. The case fatality rate was 0.92% with median time from onset to death of 16 days. Conclusion: COVID-19 cases in Shanghai were imported. Rapid identification, and effective control measures helped to contain the outbreak and prevent community transmission.
Databáze: OpenAIRE