The CDC does not really inspire confidence given the botched manner in which testing was conducted and the lack of strong leadership.
NPR made the case that Hong Kong sacrificed too much for containment, but the underlying message is that their containment is working.
https://www.npr.org/sections/goatsandsoda/2020/03/01/8103920...
Edit: HK center for health protection https://www.chp.gov.hk/en/index.html