Infectious Deseases
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Case of First Human-to-Human Infection of Novel Coronavirus in Japan
The novel coronavirus (hereinafter, SARS-CoV-2) is a new type of coronavirus that has been detected in patients with pneumonia of unknown cause, which has occurred in Wuhan City, Hubei Province in the People's Republic of China since December 2019. On February 11, the World Health Organization (WHO) specified the official name for the novel coronavirus infection as “COVID-19 (coronavirus disease 2019)” (hereinafter referred to as “COVID-19”). This paper summarizes and reports the results of an active epidemiological surveillance forcases of human-to-human infection of COVID-19 in 3 persons with no travel history to Wuhan for 2 weeks before the onset of the disease, in cooperation with local governments.
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Descriptive Epidemiology of 12 Confirmed 2019-Novel Coronavirus (2019-nCoV) Cases in Japan (As of 3 February 2020)
On 3rd January, 2020, a cluster of severe pneumonia cases of unknown etiology or unknown cause in Wuhan City, Hubei Province was reported by China’s Ministry of Health. In response to this emerging infectious disease of unknown cause, Japan updated its disease surveillance system on 6th January, 2020 in order to capture suspected cases of pneumonia related to the outbreak originating in Wuhan City. This was done in accordance to the law: “Prevention of Infectious Diseases and Medical Care for Patients with Infectious Diseases Act”, Article 14, paragraph 1. The cause of severe pneumonia cases originating in Wuhan City, China was identified as novel coronavirus (2019-nCoV) and became a designated infectious disease in Japan on 1st February, 2020. For a case definition of 2019-nCoV used prior to its addition as a designated infectious disease, please refer to “Response to novel coronavirus-associated pneumonia reported in Wuhan, Hubei Province, China and measures against nosocomial infection (in Japanese) (https://www.niid.go.jp/niid/ja/diseases/ka/corona-virus/2019-ncov.html)”.