Dr. Daniel Lucey, who has responded to, and monitored information on outbreaks since 2001, has provided a series of updates and analysis on the outbreak, now an epidemic of 2019-nCoV, the novel coronavirus identified in Wuhan China, since Jan. 7. He continues to respond to development and data on the outbreak here.
UPDATE #7: A second evidence-based hypothesis:
Given that “human-to-human transmission has occurred among close contacts since the middle of December 2019” (Li et al. NEJM Jan. 29, 2020) then the virus may have traveled by train and plane in December or earlier from Wuhan to other locations in China and other nations.
Stay tuned from more 2019-nCoV news and analysis on Science Speaks.