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The 2019 novel coronavirus disease (COVID-19) with an epidemic centered in Wuhan, China, was declared a public health emergency on January 20, 2020, by the World Health Organization and a public health emergency by the US on January 31, 2020. A total of 28 130 cases in mainland China and 22 cases in the Hong Kong Special Administrative Region (HKSAR) have been confirmed as of February 6, 2020, with a reported epidemic doubling time of 6.4 days.1 The early reported mortality rate of 4.3%2 appears to be lower than that of severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome, but this initial figure is believed likely to be an underestimation, as most of the confirmed patients are still inpatients, and their condition is not yet resolved.
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Corresponding Authors: Jason Y. K. Chan, MBBS, Room 84026, Department of Otorhinolaryngology, Head and Neck Surgery, the Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, Hong Kong SAR (firstname.lastname@example.org); Wayne Lam, MBBS, Division of Urology, Department of Surgery, the University of Hong Kong, Pok Fu Lam, Hong Kong SAR (email@example.com).
Published Online: March 20, 2020. doi:10.1001/jamaoto.2020.0488
Conflict of Interest Disclosures: None reported.
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