Nucleic acid testing should be performed according to the following steps: 1. First, self-reflection should be made on whether there is a recent history of activity in the area where the outbreak was found, or whether there is a history of contact with patients with suspected fever or confirmed patients. If none of the above epidemiological history, and when there is no fever, malaise, dry cough and other symptoms, you can make an appointment in the public or small program, or by phone.2. When doing nucleic acid testing, you need to pay attention to wear a mask to keep a distance of more than one meter from strangers.3. To do nucleic acid testing, you should first register your ID information and report your epidemiological history truthfully.4. When you go to a medical institution to do nucleic acid testing, you should pay attention to The doctor will ask the patient to open his mouth and take out the secretion with a gentle swab on the tonsils or the back wall of the throat. At this time there may be dry heaving, coughing and other symptoms, it is best to hold back.5. After the doctor takes the specimen, he will put the swab into a special kit as well as timely cryopreservation for delivery. Be concerned about how to check the results of the nucleic acid test, as well as the time for the nucleic acid test results to be issued.