Need. According to the epidemic prevention and control documents, Changshu needs to be isolated at home and concentrated in Bozhou. Changshu city, referred to as Yu for short, is named "Changshu" because of its fertile land and no floods and droughts all year round. Changshu is a national historical and cultural city. It is located in the water town in the south of the Yangtze River and is known as the "blessed land in the south of the Yangtze River". It is one of the birthplaces of Wu culture.