A person takes a walk along Tama River as Mount Fuji appears behind Daishibashi bridge Tuesday, May 4, 2021, in Tokyo. Tokyo and the western metropolises of Osaka, Kyoto and Hyogo, home to about a quarter of Japan's population of 126 million, are under the latest 17-day state of emergency as the variant, detected earlier in Britain, is rapidly spreading among younger people, causing more serious cases. People are discouraged to travel during Japan's "golden week" holidays. (AP Photo/Kiichiro Sato)