Nucleic acid testing is a direct way to find evidence of the presence of the virus. A positive test result proves that the virus has been infected, while a negative test result rules out the possibility of infection. Therefore, nucleic acid test is conducive to identifying the chain of infection, blocking the possibility of transmission and controlling the spread of the epidemic.
1. Identify the chain of infection: through the nucleic acid test, the subtype of the virus strain can be clearly known, and combined with the flow of investigation to identify the source of infection and the chain of transmission.
2. Blocking the possibility of transmission: For patients with positive nucleic acid test results, control measures can be taken at the first time to control the source of infection; for the environment with positive nucleic acid test results, environmental decontamination can be carried out as soon as possible to cut off the transmission pathway.
3. Control the spread of the epidemic: carry out large-scale nucleic acid testing in the population and actively search for potential new coronavirus infected people, which is conducive to further clarifying the scope of the epidemic and then take targeted measures to stop the spread of the epidemic.