Division of Infectious Disease Prevention and Control (DID) is one of the technical departments of Chinese Center for Disease Control and Prevention. DID, performs the roles and responsibilities for national communicable diseases surveillance, early warning, outbreak investigation, prevented and control response, coordination and technical services, etc. Furthermore, along with the National Institute for Communicable Disease Control and Prevention, National Institute for Viral Diseases Control and Prevention and National Institute for Parasitic Diseases Control and Prevention, DID provides infectious disease control & prevention consultations for National Health and Family Planning Commission (NHFPC) and provides technical services for diseases control inititusions and health facilities nationwide.