Objective: To study the epidemiol characteristics of coronavirus disease 2019 (COVID-19) in Zhoushan, so as to provide reference for improving the prevention and control capability of COVID-19 Methods: All the confirmed cases of COVID-19 in Zhoushan, diagnosed according to China′s "COVID-19 diagnosis and treatment plan (fifth version) " and reported from Jan 19 to Feb 17, 2020, were extracted from the infectious disease surveillance system Data of general information, clin characteristics, laboratory results, transmission and detection routes were collected and analyzed Results: By Feb 17, Ten confirmed cases of COVID-19 in Zhoushan had been reported, including 7 males and 3 females They were all adults, with an average age of (50 90±15 00) years Five cases were discharged The incubation period ranged from 2 to 12 days, with a median of 5 days The first symptoms were fever (8 cases), cough (7 cases) and muscle pain (2 cases) Chest computed tomog (CT) scans showed ground glass opacities in the lungs of all the cases Six cases had Wuhan related exposure SARS-CoV-2 was tested pos in the sputum specimens or throat swabs of all the cases and the faeces of 4 cases The last suspicious exposure of 5 cases occurred before, and that of another 5 cases occurred after the onset of clin symptoms in the confirmed maternal cases Three cases were found in active consultation after clin symptoms, and another 7 cases were found in the monitoring of close contacts Conclusions: The 10 confirmed cases of COVID-19 reported in Zhoushan are all adults, and most have Wuhan related exposure SARS-CoV-2 can be detected in the fecal samples, but the existence of fecal-oral transmission needs more research SARS-CoV-2 has strong infectivity, and may also have infectivity before the onset of symptoms (at the end of incubation period) Isolation and early detection of close contacts are conducive for early case-finding
Epidemiological characteristics of coronavirus disease 2019 (COVID-19) cases in Zhoushan