Children play in a park in Meguro-ku, Tokyo, Japan, April 8, 2020. Major Japanese cities including the capital of Tokyo became unusually quiet on Wednesday, with many shops closed and fewer people on streets on the first day after a state of emergency was declared to contain the fast spread of COVID-19 infections across the country. (Photos: Xinhua/Du Xiaoyi)

Citizens wearing masks pass the ticket gates at Meguro station in Tokyo, Japan, April 8, 2020.

A passenger wearing mask gets on a bus in Shinagawa-ku, Tokyo, Japan, April 8, 2020.

Customers check out at a supermarket in Shinagawa-ku, Tokyo, Japan, April 8, 2020.