A member of the Japanese women's under-19 soccer team has been hospitalised after catching the H1N1 influenza virus during a recent tournament in China.
Ryoko Takara has been quarantined in a Kobe hospital since returning to Japan earlier this week from Wuhan. Her fever had dropped and condition was improving, the Nikkan Sports daily reported.
The Japan Football Association (JFA) said none of the player's team mates or coaching staff had displayed symptoms of the virus. The JFA ordered all players and officials who travelled to China to take a course of the anti-viral drug Tamiflu as a precaution.
Two junior-ranking sumo wrestlers had also contracted the virus during a regional tournament in the north of Japan, according to local media.
Protective masks were handed out to sumo fans in Iwate prefecture while activities such as having children 'wrestle' the loin-clothed giants were called off.
Japan confirmed its first fatality from the disease on Saturday in the southern island chain of Okinawa. The country has confirmed over 5,000 cases of the flu.