What does nucleic acid testing detect?

“Everything that should be tested”: The key groups specified in the “Implementation Opinions” (that is, those who should be tested) include: close contacts, overseas arrivals, fever outpatients, newly hospitalized patients and accompanying personnel , medical institution staff, port quarantine and border inspection personnel, prison staff, and social welfare and elderly care institution staff. For example, Beijing recently made it clear that since May 30, anyone who has been to the Xinfadi Market or has had close contact with market sales staff should take the initiative to report to the community or unit, and take the initiative to go to relevant institutions or take nucleic acid tests at locations arranged by the community. Screening and home observation.

“Check everything you should and do everything you want” is an important goal of Beijing’s current epidemic prevention and control, and it has appeared frequently in various media recently. Still, many people are confused.