Taiwan's Central Epidemic Command Center (CECC) on February 22 raised travel notice for Japan and South Korea to Level 2, advising travelers from Taiwan to practice enhanced precautions while in the country, in light of a spike in novel coronavirus (COVID-19) cases there.
For more information
https://www.cdc.gov.tw/En/Bulletin/Detail/J3j8EM1yS-5FACSFd5kM_A?typeid=158