Author: Wu, Peng; Hao, Xinxin; Lau, Eric H Y; Wong, Jessica Y; Leung, Kathy S M; Wu, Joseph T; Cowling, Benjamin J; Leung, Gabriel M
Title: Real-time tentative assessment of the epidemiological characteristics of novel coronavirus infections in Wuhan, China, as at 22 January 2020 Document date: 2020_1_23
ID: 0rxtati9_8
Snippet: Between 10 and 12 January when there were no new cases reported, the Wuhan Municipal Health Commission announced that no new cases of 2019-nCoV infection were identified with illness onset after 3 January. As at 11 January, more than 700 close contacts were under medical surveillance, more than half being healthcare workers (HCWs), with no infections being identified [15] . Among the first 41 confirmed cases, approximately 70% reported exposure t.....
Document: Between 10 and 12 January when there were no new cases reported, the Wuhan Municipal Health Commission announced that no new cases of 2019-nCoV infection were identified with illness onset after 3 January. As at 11 January, more than 700 close contacts were under medical surveillance, more than half being healthcare workers (HCWs), with no infections being identified [15] . Among the first 41 confirmed cases, approximately 70% reported exposure to the Southern China Seafood Wholesale Market [16] . Using the method described by Cauchemez et al. [17] , assuming that the market was the only source of zoonotic infections, we estimated R 0 to be 0.3 (95% confidence interval (95% CI): 0.17-0.44).
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