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How long can the registration code of nucleic acid brush for weather epidemic prevention and control in Shanghai remain effective?
The validity period of negative results of nucleic acid test is set within 7 days. The shorter the ideal validity period of negative results of nucleic acid detection, the safer it is. But if it is too short, it needs frequent detection, which is difficult to operate in reality. The validity period is limited to 7 days, which is mainly determined according to the COVID-19 incubation period method. The incubation period in COVID-19 is usually 3 to 7 days, some people are less than 3 days, some people are more than 7 days, and the longest incubation period is 14 days. Therefore, 14 days is set as the observation period for close contacts.
Matters needing attention in nucleic acid detection
1. The appointment for nucleic acid testing serves people who have no symptoms such as fever and no epidemiological history and voluntarily accept nucleic acid testing. People with fever, cough, sore throat and other symptoms should go to the fever clinic for screening in time.
2. For your own safety, please make an appointment on demand, make an appointment at the wrong peak, and wear a mask to avoid getting together and cross infection.
3. Please bring your ID card and social security card to see a doctor, cooperate with the hospital's pre-inspection and triage work, scan the "health code" and truthfully declare your personal health status; Please always wear a mask and keep a social distance of one meter.
4. No fasting is required for nucleic acid collection, and no smoking, drinking or chewing gum is allowed for 2 hours before sampling; For pharyngeal sensitive person, it is recommended not to eat within two hours before sampling to avoid nausea and vomiting when collecting throat swab.
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