Wuhan made two big mistakes after Jan 18. The first was the failure to prevent a hospital rush which resulted in mass cross-infections, it was sadly easily preventable had they only asked people to queue outside. The second mistake was the failure to collect and quarantine people with light symptoms. As a result family members were infected and light conditions were allowed to develop into serious condition.
The Japanese strategy tries to avoid the first mistake (no sure if it's going to suceed) but seems to be repeating the second.
I hope the Japanese authority can get its act together and figure out a plan to solve the second problem, else it may lead to a humanitarian crisis in Tokyo.
Meanwhile, the airfare prices from South Korea to a number of Chinese cities has increased up to 8 folds in the last two days. A lot of Chinese in South Korea (many Korean Chinese work or study there) are desperately trying to return to China. Chinese in Japan are also moving from posting on Weibo about escaping Japan to actually booking flights. Chinese authorities in major cities are making plans to quarantine arrivals from SK and Japan. I hope the returnees won't cause a second wave of infections.