People wearing masks walk in the Central area of Hong Kong, south China, July 27, 2020. Hong Kong announced further tightening of anti-epidemic measures, including prohibition of dining-in services in restaurants and mandatory mask-wearing in all public places, which will come into effect on Wednesday.Photo:China News Service

Photo shows people dine in a restaurant in Hong Kong, July 27, 2020. Hong Kong announced further tightening of anti-epidemic measures, including prohibition of dining-in services in restaurants and mandatory mask-wearing in all public places, which will come into effect on Wednesday.Photo:China News Service

Photo shows an empty restaurant in Hong Kong, July 27, 2020. Hong Kong announced further tightening of anti-epidemic measures, including prohibition of dining-in services in restaurants and mandatory mask-wearing in all public places, which will come into effect on Wednesday. Photo:China News Service

A man and a kid wearing masks walk in the Central area of Hong Kong, south China, July 27, 2020. Hong Kong announced further tightening of anti-epidemic measures, including prohibition of dining-in services in restaurants and mandatory mask-wearing in all public places, which will come into effect on Wednesday.Photo:China News Service