Japan ups health controls as Olympic athlete tests positive

Japanese Prime Minister Yoshihide Suga, center, stands by a remotely-controlled guide robot at Haneda international airport in Tokyo, Monday, June 28, 2021. Suga inspected antigen testing for arrivals and vowed to ensure appropriate border controls as growing numbers of Olympic and Paralympic participants enter Japan ahead of the July 23 opening of the games (Kyodo News via AP)

People wearing face masks to help protect against the spread of the coronavirus walk through an underpass in Tokyo, Monday, June 28, 2021. (AP Photo/Koji Sasahara)