yeah, I couldn't find a source for this either. There are a few cases apparently, and there's still a lot about the virus that is unknown, but it doesn't look to be that high.. it could also be false-negatives that might explain this.., but it could theoretically also be that the virus is "bi-phasic", "meaning the disease appears to go away before recurring."

https://www.reuters.com/article/us-china-health-japan/japane...