Novel Coronavirus (2019-nCoV): Developments in China and International Response [Updated February 6, 2020] [open pdf - 506KB]
From the Document: "On December 31, 2019, China's government notified the World Health Organization (WHO) of patients with pneumonia of unknown cause in Wuhan, China. On January 7, 2020, Chinese scientists isolated a previously unknown coronavirus (2019-nCoV) in the patients, and on January 12 the scientists made its genetic sequence available to WHO and international partners. By February 5, the virus had spread to every province in China and to 24 other countries."
CRS In Focus, IF11421
Congressional Research Service: https://crsreports.congress.gov/