Shanghai and the neighboring provinces of Jiangsu, Zhejiang and Anhui signed an agreement in Shanghai on Saturday to set up a joint health service system with a unified public network for infectious disease prevention and control. It marks a new move in inter-provincial cooperation on health care, including serious public health case management, cross-provincial epidemiological investigation on food safety issues and regional cooperation on first aid and information-sharing. The four regions will also share patient databases and push the establishment of digital medical records and public health data for better health care development, according to the agreement signed on the first Yangtze River Delta Health Summit.