A member of security wearing a protective face mask, amid the coronavirus disease (COVID-19) outbreak, walks on the train to Tokyo from the main train station in Sendai, the capital city of Miyagi, Japan, August 1, 2021. REUTERS/Amr Abdallah Dalsh 

Members of media wearing protective face masks, amid the coronavirus disease (COVID-19) outbreak, wait at the train station of Sendai, the capital city of Miyagi, Japan, August 1, 2021. REUTERS/Amr Abdallah Dalsh 

A member of security wearing a protective face mask, amid the coronavirus disease (COVID-19) outbreak, is pictured at the train station of Sendai, the capital city of Miyagi, Japan, August 1, 2021. REUTERS/Amr Abdallah Dalsh 

A member of media wearing a protective face mask, amid the coronavirus disease (COVID-19) outbreak, travels to Tokyo from the main train station in Sendai, the capital city of Miyagi, Japan, August 1, 2021. REUTERS/Amr Abdallah Dalsh 

A Japanese resident wearing a protective face mask, and gloves amid the coronavirus disease (COVID-19) outbreak, waits near media members at the train station of Sendai, the capital city of Miyagi, Japan, August 1, 2021. REUTERS/Amr Abdallah Dalsh 

A Japanese resident wearing a protective face mask and gloves, amid the coronavirus disease (COVID-19) outbreak, waits at the train station of Sendai, the capital city of Miyagi, Japan, August 1, 2021. REUTERS/Amr Abdallah Dalsh 

A Japanese resident wearing a protective face mask, amid the coronavirus disease (COVID-19) outbreak, arrives at the train station of Sendai, the capital city of Miyagi, Japan, August 1, 2021. REUTERS/Amr Abdallah Dalsh 

Japanese residents wearing protective face masks, amid the coronavirus disease (COVID-19) outbreak, wait at the train station of Sendai, the capital city of Miyagi, Japan, August 1, 2021. REUTERS/Amr Abdallah Dalsh 

A general view of the city is seen through a window of a train from Sendai to Tokyo during the Tokyo 2020 Olympic Games in Sendai, the capital city of Miyagi, Japan, August 1, 2021. REUTERS/Amr Abdallah Dalsh 

Tokyo 2020 Olympics' volunteering staff carry signs with COVID-19 safety measurements as they walk around the media area near saliva samples collection point for coronavirus disease (COVID-19) PCR tests, during the Tokyo 2020 Olympic Games in Sendai, the capital city of Miyagi Prefecture, Japan, July 31, 2021. REUTERS/Amr Abdallah Dalsh 

A Tokyo 2020 Olympics' volunteer takes test tubes for a PCR test at a saliva samples collection point for coronavirus disease (COVID-19) PCR tests, in Miyagi Stadium, during the Tokyo 2020 Olympic Games in Sendai, the capital city of Miyagi Prefecture, Japan, July 31, 2021. REUTERS/Amr Abdallah Dalsh 

A Tokyo 2020 Olympics' volunteer registers her sample at a saliva samples collection point for coronavirus disease (COVID-19) PCR tests, in Miyagi Stadium, during the Tokyo 2020 Olympic Games in Sendai, the capital city of Miyagi Prefecture, Japan, July 31, 2021. REUTERS/Amr Abdallah Dalsh 

Employees work at a saliva samples collection point for coronavirus disease (COVID-19) PCR tests, in Miyagi Stadium, during the Tokyo 2020 Olympic Games in Sendai, the capital city of Miyagi Prefecture, Japan, July 31, 2021. REUTERS/Amr Abdallah Dalsh 

Employees work at a saliva samples collection point for coronavirus disease (COVID-19) PCR tests, in Miyagi Stadium, during the Tokyo 2020 Olympic Games in Sendai, the capital city of Miyagi Prefecture, Japan, July 31, 2021. REUTERS/Amr Abdallah Dalsh 

An employee holds unused tests tubes at a saliva samples collection point for coronavirus disease (COVID-19) PCR tests, in Miyagi Stadium, during the Tokyo 2020 Olympic Games in Sendai, the capital city of Miyagi Prefecture, Japan, July 31, 2021. REUTERS/Amr Abdallah Dalsh 

An employee works next to a general instruction sign at the collection point for saliva samples for coronavirus disease (COVID-19) PCR tests, in Miyagi Stadium, during the Tokyo 2020 Olympic Games in Sendai, the capital city of Miyagi Prefecture, Japan, July 31, 2021. REUTERS/Amr Abdallah Dalsh 

Tokyo 2020 Olympics' volunteering staff carry signs with COVID-19 safety measurements as they walk around the media area near saliva samples collection point for coronavirus disease (COVID-19) PCR tests, during the Tokyo 2020 Olympic Games in Sendai, the capital city of Miyagi Prefecture, Japan, July 31, 2021. REUTERS/Amr Abdallah Dalsh 

Employees work at the collection point for the saliva samples for tests for the coronavirus disease (COVID-19), at the collection point in Miyagi Stadium, during the Tokyo 2020 Olympic Games in Sendai, the capital city of Miyagi Prefecture, Japan, July 31, 2021. REUTERS/Amr Abdallah Dalsh 

A member of staff wearing a protective face mask removes water at the Miyagi Stadium after heavy rain, ahead of the Tokyo 2020 Olympic Games men's quarter-final football match between Spain and Ivory Coast, in Sendai, the capital city of Miyagi Prefecture, Japan, July 31, 2021. REUTERS/Amr Abdallah Dalsh 

A Japanese fan wearing a protective face mask holds Spain's flag at the Miyagi Stadium after heavy rain, ahead of the Tokyo 2020 Olympic Games men's quarter-final football match between Spain and Ivory Coast, in Sendai, the capital city of Miyagi Prefecture, Japan, July 31, 2021. REUTERS/Amr Abdallah Dalsh 

A member of security staff wearing a protective face mask is reflected in water at the Miyagi Stadium after heavy rain, ahead of the Tokyo 2020 Olympic Games men's quarter-final football match between Spain and Ivory Coast, in Sendai, the capital city of Miyagi Prefecture, Japan, July 31, 2021. REUTERS/Amr Abdallah Dalsh 

A member of staff member wearing a protective face mask walks between empty seats at the Miyagi Stadium after heavy rain, ahead of the Tokyo 2020 Olympic Games men's quarter-final football match between Spain and Ivory Coast, in Sendai, the capital city of Miyagi Prefecture, Japan, July 31, 2021. REUTERS/Amr Abdallah Dalsh 

A member of security staff wearing a protective face mask is reflected in water at the Miyagi Stadium after heavy rain, ahead of the Tokyo 2020 Olympic Games men's quarter-final football match between Spain and Ivory Coast, in Sendai, the capital city of Miyagi Prefecture, Japan, July 31, 2021. REUTERS/Amr Abdallah Dalsh 

A general view of the Miyagi Stadium after heavy rain, ahead of the Tokyo 2020 Olympic Games men's quarter-final football match between Spain and Ivory Coast, in Sendai, the capital city of Miyagi Prefecture, Japan, July 31, 2021. REUTERS/Amr Abdallah Dalsh 

A general view of clouds and the city before the expected storm seen through the window of a special bus transporting journalists to football matches in Miyagi Stadium, during the Tokyo 2020 Olympic Games, in Sendai, Miyagi prefecture, Japan July 27, 2021. REUTERS/Amr Abdallah Dalsh 

A general view of clouds and the city before the expected storm seen through the window of a special bus transporting journalists to football matches in Miyagi Stadium, during the Tokyo 2020 Olympic Games, in Sendai, Miyagi prefecture, Japan July 27, 2021. REUTERS/Amr Abdallah Dalsh 

A general view of clouds and the city before the expected storm seen through the window of a special bus transporting journalists to football matches in Miyagi Stadium, during the Tokyo 2020 Olympic Games, in Sendai, Miyagi prefecture, Japan July 27, 2021. REUTERS/Amr Abdallah Dalsh 

A general view of residential houses with green vallies seen through the window of a special bus transporting journalists to the Miyagi Stadium during of the Tokyo 2020 Olympic Games in Sendai, the capital city of Miyagi, Japan, July 25, 2021. REUTERS/Amr Abdallah Dalsh 

A general view of residential houses with green vallies seen through the window of a special bus transporting journalists to the Miyagi Stadium during of the Tokyo 2020 Olympic Games in Sendai, the capital city of Miyagi, Japan, July 25, 2021. REUTERS/Amr Abdallah Dalsh 

A water canal is seen next to residential houses through the window of a special bus transporting journalists to the Miyagi Stadium during of the Tokyo 2020 Olympic Games in Sendai, the capital city of Miyagi, Japan, July 25, 2021. REUTERS/Amr Abdallah Dalsh 

A general view of residential houses with green vallies seen through the window of a special bus transporting journalists to the Miyagi Stadium during of the Tokyo 2020 Olympic Games in Sendai, the capital city of Miyagi, Japan, July 25, 2021. REUTERS/Amr Abdallah Dalsh 

A taxi driver wearing white gloves and a face mask is seen through a plastic separator, amid the coronavirus disease (COVID-19) outbreak, as he drives back from the Miyagi Stadium during of the Tokyo 2020 Olympic Games in Sendai, the capital city of Miyagi, Japan, July 25, 2021. REUTERS/Amr Abdallah Dalsh 

Local residents in face masks, amid the coronavirus disease (COVID-19) outbreak, walking along an almost empty street are seen through the window of a special bus transporting journalists to the Miyagi Stadium during of the Tokyo 2020 Olympic Games in Sendai, the capital city of Miyagi, Japan, July 25, 2021. REUTERS/Amr Abdallah Dalsh 

A Japanese family wearing face masks, amid the coronavirus disease (COVID-19) outbreak, is seen through the window of a special bus transporting journalists to the Miyagi Stadium during of the Tokyo 2020 Olympic Games in Sendai, the capital city of Miyagi, Japan, July 25, 2021. REUTERS/Amr Abdallah Dalsh 

Local residents in face masks, amid the coronavirus disease (COVID-19) outbreak, walking along during a rush hour are seen through the window of a special bus transporting journalists to the Miyagi Stadium during of the Tokyo 2020 Olympic Games in Sendai, the capital city of Miyagi, Japan, July 25, 2021. REUTERS/Amr Abdallah Dalsh 

Local residents in face masks, amid the coronavirus disease (COVID-19) outbreak, walking along during a rush hour are seen through the window of a special bus transporting journalists to the Miyagi Stadium during of the Tokyo 2020 Olympic Games in Sendai, the capital city of Miyagi, Japan, July 25, 2021. REUTERS/Amr Abdallah Dalsh 

Local residents in face masks, amid the coronavirus disease (COVID-19) outbreak, walking along during a rush hour are seen through the window of a special bus transporting journalists to the Miyagi Stadium during of the Tokyo 2020 Olympic Games in Sendai, the capital city of Miyagi, Japan, July 25, 2021. REUTERS/Amr Abdallah Dalsh 

Cars driving during a rush hour are seen through the window of a special bus transporting journalists to the Miyagi Stadium during of the Tokyo 2020 Olympic Games in Sendai, the capital city of Miyagi, Japan, July 25, 2021. REUTERS/Amr Abdallah Dalsh 

A woman with an umbrella walking over a pedestrian crossing during hot weather is seen through the window of a special bus transporting journalists to the Miyagi Stadium during the Tokyo 2020 Olympic Games in Sendai, the capital city of Miyagi, Japan, July 25, 2021. REUTERS/Amr Abdallah Dalsh 

Iris Ohyama's rice cookers are displayed at a store in Sendai, Miyagi prefecture, Japan, September 3, 2020. Picture taken September 3, 2020. REUTERS/Sam Nussey 

Purchasers take part in a auction for buying carcass of beef cattle at 11th National Japanese Beef Ability Expo, commonly known as Wagyu Olympics, in Sendai, northern Japan September 10, 2017. Picture taken September 10, 2017. REUTERS/Issei Kato 

Cattle and breeders take part in a competition at breeding cattle category - young bull division competition at 11th National Japanese Beef Ability Expo, commonly known as Wagyu Olympics, in Sendai, northern Japan September 10, 2017. Picture taken September 10, 2017. REUTERS/Issei Kato 

Visitors are seen at the main entrance of the 11th National Japanese Beef Ability Expo, commonly known as Wagyu Olympics, in Sendai, northern Japan September 10, 2017. Picture taken September 10, 2017. REUTERS/Issei Kato 

Cattle and breeders take part in a competition at breeding cattle category - young bull division competition at 11th National Japanese Beef Ability Expo, commonly known as Wagyu Olympics, in Sendai, northern Japan September 10, 2017. Picture taken September 10, 2017. REUTERS/Issei Kato 

A man checks the pictures of award-winning carcass of beef cattle competitions at 11th National Japanese Beef Ability Expo, commonly known as Wagyu Olympics, in Sendai, northern Japan September 10, 2017. Picture taken September 10, 2017. REUTERS/Issei Kato 

Judges check a cattle in a competition at breeding cattle category at 11th National Japanese Beef Ability Expo, commonly known as Wagyu Olympics, in Sendai, northern Japan September 10, 2017. Picture taken September 10, 2017. REUTERS/Issei Kato 

A staff members are seen at a makeshift cattle shed for Hida Beef at 11th National Japanese Beef Ability Expo, commonly known as Wagyu Olympics, in Sendai, northern Japan September 10, 2017. Picture taken September 10, 2017. REUTERS/Issei Kato 

A male cattle takes part in a competition at breeding cattle category - young bull division competition at 11th National Japanese Beef Ability Expo, commonly known as Wagyu Olympics, in Sendai, northern Japan September 10, 2017. Picture taken September 10, 2017. REUTERS/Issei Kato 

A cattle and a breeder take part in a competition at breeding cattle category - young bull division competition at 11th National Japanese Beef Ability Expo, commonly known as Wagyu Olympics, in Sendai, northern Japan September 10, 2017. Picture taken September 10, 2017. REUTERS/Issei Kato 

Breeders, supporters and officials from Kagoshima prefecture celebrate after winning a division of breeding cattle category competition at 11th National Japanese Beef Ability Expo, commonly known as Wagyu Olympics, in Sendai, northern Japan September 10, 2017. Picture taken September 10, 2017. REUTERS/Issei Kato 

Cattle and breeders from Iwate prefecture pose for a photograph at 11th National Japanese Beef Ability Expo, commonly known as Wagyu Olympics, in Sendai, northern Japan September 10, 2017. Picture taken September 10, 2017. REUTERS/Issei Kato 

A cattle, breeders and officials pose for a photograph during a photo session after winning a breeding cattle category competition at 11th National Japanese Beef Ability Expo, commonly known as Wagyu Olympics, in Sendai, northern Japan September 10, 2017. Picture taken September 10, 2017. REUTERS/Issei Kato 

A group of female Bungo cattle from Oita prefecture, Fumigiku, Fumiayame, Fumiteru 10 and Fumiroman, are posed for a photograph with their owners including Tadanao Sato during a photo session after captured grand prize of the breeding cattle category at 11th National Japanese Beef Ability Expo, commonly known as Wagyu Olympics, in Sendai, northern Japan September 11, 2017. REUTERS/Issei Kato 

Breeding cattle take part in a competition at 11th National Japanese Beef Ability Expo, commonly known as Wagyu Olympics, in Sendai, northern Japan September 10, 2017. Picture taken September 10, 2017. REUTERS/Issei Kato 

Breeding cattle take part in a competition at 11th National Japanese Beef Ability Expo, commonly known as Wagyu Olympics, in Sendai, northern Japan September 10, 2017. Picture taken September 10, 2017. REUTERS/Issei Kato 

Breeders and officials from Kagoshima prefecture celebrate after winning a breeding cattle category at 11th National Japanese Beef Ability Expo, commonly known as Wagyu Olympics, in Sendai, northern Japan September 10, 2017. Picture taken September 10, 2017. REUTERS/Issei Kato 

Visitors show off a banner cheering Kobe Beef during a division of breeding cattle category competition at 11th National Japanese Beef Ability Expo, commonly known as Wagyu Olympics, in Sendai, northern Japan September 10, 2017. Picture taken September 10, 2017. REUTERS/Issei Kato 

Breeding cattle take part in a competition at 11th National Japanese Beef Ability Expo, commonly known as Wagyu Olympics, in Sendai, northern Japan September 10, 2017. Picture taken September 10, 2017. REUTERS/Issei Kato 

18 month-old female cattle Yoriko, from Kagoshima prefecture, is posed for a photograph during a photo session after winning the breeding cattle category - young female cattle division competition at 11th National Japanese Beef Ability Expo, commonly known as Wagyu Olympics, in Sendai, northern Japan September 10, 2017. Picture taken September 10, 2017. REUTERS/Issei Kato 

A female Bungo cattle Fumiayame from Oita prefecture and her owner Tadanao Sato are surrounded by media after captured grand prize of the breeding cattle category at 11th National Japanese Beef Ability Expo, commonly known as Wagyu Olympics, in Sendai, northern Japan September 11, 2017. REUTERS/Issei Kato