Daily nucleic acid because of the new coronavirus fast spreading, stealthy, in order to more closely detect the status of the virus infection, to prevent the virus from expanding the spread.

First of all, most of the epidemic infections are infected with the Omicron variant strain, which has a fast transmission speed and strong invisibility, and the infected patients are mostly mildly ill or asymptomatic, and the virus spreads easily among the population, and the transmission mode is even more insidious. In order to prevent the aggravation of the infection so need to do daily nucleic acid screening, timely isolation and treatment of patients who have been infected.

In addition, there is usually an incubation period after infection with the new coronavirus, and there is a window of time between infection and detection of the new coronavirus, during which the virus is not easily detected, making it easy to miss the test.