There was a spike in Seoul. Based on their reaction so far, I have a great deal of confidence in their ability to isolate it and react effectively.

Regarding the rise in CFR: it will naturally go up as cases decline, because fatalities stem from a time when the case rate was more rapidly increasing. Korea’s case rate had been declining for several days:

https://mobile.twitter.com/AdamJKucharski/status/12297080012...

https://www.google.com/amp/s/www.nytimes.com/2020/03/05/heal...