Control zones are medium to high risk levels.

Definition of the control area: mainly the positive cases of close, sub-closely and *** with the exposure of high-risk groups of people living, working, activities and the surrounding area.

Control Measures: The control zone implements preventive and control measures such as "people do not go out of the zone, and gathering is strictly prohibited". Control area in principle home (except for participation in the unified nucleic acid screening), each household every two days can be arranged for a person under the premise of strict personal protection, the area, time, limited to the community designated place to buy living materials.

For those who really need to go out for medical treatment, the community will issue a certificate and do a good job of reviewing and registering. All personnel in and out of the implementation of identification, code, temperature measurement, registration and 48-hour nucleic acid test report. When living at home, they should also wear masks, minimize contact between family members, and take measures such as disinfecting the environment and ventilating the living room. In addition to the protection of residents' normal life needs of shopping malls, supermarkets and farmers' markets, other closed public **** places all closed.

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Definition of sealing and controlling (closed) areas: mainly the delineated medium- and high-risk zones as well as the discovery points of positive cases, residences, workplaces, activity points and the surrounding areas.

Control and control measures: the closed zone is "area closed, not leaving the house, door-to-door service", the residents are given a yellow code, home isolation measures are strictly implemented, 24-hour patrols are arranged to prevent people from going out and moving around, so that they can not leave their homes and cars, and the required living materials are delivered to their homes.

The people who need to go out because of medical treatment must be certified by the community and do a good job of reviewing and registering, and arranging for a special person and a special car to do a good job of personal protection, and the implementation of closed-loop management. All personnel in the sealed area "only in and out, strictly prohibited from gathering", sealed the control of the first, fourth and seventh days, respectively, a full nucleic acid test.

Definition of precautionary area: the activity area of the key people who may be exposed outside the closed area and control area. The division of the three zones is used to form a differentiated circle management.

Control measures: the precautionary area to implement the "strengthening of social control, strictly limit the size of the gathering of people". Strictly limit the gathering of people, from the strict implementation of the indoor public **** places to make appointments staggered, temperature measurement, sweeping, wearing masks and other measures, delineation of the shopping area, to limit the shopping time, the implementation of staggered out of the house. Preventive area, shopping malls, supermarkets and farmers markets to limit the flow of passengers, food establishments prohibited dine-in, other entertainment confined places to suspend business.