Wuhan is literally THE land-bound crossroads of transportation for the most populated part of China. If you look at a map of China, geographic north from Wuhan is Beijing, geographic west from Wuhan is Chongqing and Chengdu, geographic east from Wuhan is Shanghai, Nanjing and Hangzhou, and geographic south from Wuhan is Guangzhou. As such, the disease would have spread throughout China VERY quickly before the quarantine, given China's modern air travel and high-speed passenger rail system. Yikes. 😱😷
This is why I think a huge number of Chinese students who returned to the US in january are going to be vectors. They rode on buses, trains and planes that probably ventured to Wuhan at least once.
http://www.freerepublic.com/focus/chat/3810967/posts?page=206#206
Beijing quarantine begins tomorrow, or so I am told..