What does "due diligence" mean?

1. The term "due diligence" refers to determining the spread risk of the epidemic. If nucleic acid testing is needed, it must be ensured. 2. The objects of "due diligence" include: close contacts, overseas entry personnel, fever outpatients, newly hospitalized patients and their accompanying personnel, staff of medical institutions, port quarantine and frontier inspection personnel, prison staff, and staff of social pension welfare institutions.

3. The central government requires that the key population should be properly inspected to ensure the safety of residents. Improve the detection ability and expand the detection range as much as possible. Strengthening nucleic acid detection is not only conducive to consolidating the results of prevention and control, safeguarding people's health, but also conducive to the rational flow of personnel and promoting the comprehensive return to work. It is an important measure of "external defense investment and internal defense rebound". It is also emphasized that expanding the scope of nucleic acid detection should be the primary measure to implement the "four early" measures of normalization prevention and control, and early detection and accurate prevention and control should be realized through detection, thus creating conditions for accelerating the full recovery of production and living order.