Low risk is not the same as no risk, does not mean that protection is reduced, should also do a good job of personal protection. First of all, reduce unnecessary crowd gathering, go to the crowd gathering places recommended to wear masks. Secondly, when resuming work and production, take partitioned operations and decentralized dining; when working in a closed office environment, masks should also be properly worn and work hours should be shortened as much as possible to reduce staff density. Strictly comply with the requirements of disinfection, ventilation, temperature measurement, etc., and at the same time, we should do our personal self-health monitoring and not take it lightly.