Latest update:
835 confirmed cases in China
25 fatalities
9507 in close contact with the infected identified, 1087 of those in medical observation and 8420 cases undergoing diagnosis now.
Travel bans have been imposed on eight cities now: Wuhan, Huanggang, Ezhou, Chibi, Xiantao, Qianjiang, Zhijiang and Lichuan.
At least four generations of spread confirmed. About a fourth of cases said to be severe.
Japan confirmed its second case.