1, the epidemic when the whole jurisdiction, full coverage of the household mapping is conducive to timely grasp of the flow of people in the jurisdiction, for the subsequent flow of the epidemic work, more accurate investigation and prevention and control work, have a good help.

2, through the big data and "building by building, household by household" investigation, but also to strengthen the key groups and key areas of mapping and control. Further play a good role in grass-roots communities, strictly control the flow of people.