Containment seems to be working pretty well, if you compare the dynamics of it in China (and on the quarantined cruise ship) to the dynamics of it everywhere else.
[0] https://www.usatoday.com/story/news/nation/2020/02/12/corona...
[1] https://www.aljazeera.com/news/2020/02/china-virus-funeral-o...
North Korea, Mongolia, Nepal, Northern Thailand, North Vietnam, North India, Eastern Russia, will keep this infection going until the next major outbreak next winter.