i am going to go see my grand baby when she is born. stopping air travel at this point will serve no purpose. The virus is out in the community and likely has been
hot topic here... :-)
As mentioned by several here, there is hope that the testing rate in Japan will increase. Japan has good quality health care, but it is national in nature:
“Coronavirus testing now covered by Japan’s national insurance
Amid mounting criticism over the low number of people who have been tested for COVID-19 in Japan compared to its neighboring countries, screenings are being covered from Friday by the national health insurance in an effort to increase testing.”