Casual clothing chain Uniqlo has reopened its flagship store in Tokyo's Ginza district after a month-long shutdown due to the coronavirus outbreak.

The chain operator, Fast Retailing, reopened the store on Monday, saying that it is able to use anti-infection know-how at its shops at home and abroad.

At the Ginza store, customers are required to wear masks and use hand sanitizers at the entrance.

They will also have their body temperatures checked and will be refused entry if they are found to have a fever of 37.5 degrees Celsius or higher.

Transparent plastic sheets were installed at the cashier counters to prevent possible transmission of the virus.

All floors will be disinfected every two hours, and the staff will limit the number of customers when it's too crowded.

Fast Retailing closed 311, or nearly 40 percent, of the Uniqlo outlets in Japan since a state of emergency was declared in early April.

The company plans to resume operations at other domestic stores where preventive measures are in place. Many Uniqlo stores overseas are also reopening.