Real-time quantitative PCR is widely used to detect COVID-19-specific nucleic acid fragments in China. During the test, the doctor will use a cotton swab similar to a cotton swab to wipe the secretion near the tonsil and pharyngeal recess, or take the secretion from the back of the nasopharynx through the nasal cavity, and then put it in a test tube, and then hand it over to the inspection department for corresponding virus nucleic acid detection. Nucleic acid detection is completed through five steps: sampling, sample retention, preservation, nucleic acid extraction and computer detection.
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Precautions:
On the day of testing, testers should carry their ID cards or household registration books, do not eat for 2 hours before sampling, do not smoke or drink for 30 minutes, wear masks correctly when sampling, keep a distance of more than one meter when queuing, and reduce swallowing, clearing throat and other actions during testing.
The negative nucleic acid certificate does not need to be isolated after returning to China, but it needs to be monitored at home 14 days, and personal protection must be done when going out. In addition, nucleic acid testing should be done on the 7th day and14th day after returning to China.
People's Daily Online-Dragon Boat Festival Beijing Station reminds you not to forget to bring your nucleic acid test certificate within 7 days.