"The epidemic is an order, prevention and control is responsibility. "The retrograde practitioners use their actions to interpret their responsibilities and responsibilities. This work records the retrograde practitioners, work directions, prevention and control knowledge and data under the epidemic in the form of web pages, uses 720 cloud panoramic technology to show community epidemic prevention, and links to the China Epidemic Network to obtain the latest developments of the epidemic in real time. Concentric war epidemic, "epidemic" war to the end, pay tribute to the retrograde!