Recently
The epidemic prevention and control situation is severe and complex
There are more people doing nucleic acid
There are questions and come to
Why do we have no infected people here?
So many people do
How should I protect myself
…
Don't worry, your doubts
The editor will answer
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We have no infected people here
Why do we also do nucleic acid test ?
nucleic acid test for new coronavirus in the population is of great significance to early diagnosis and treatment, epidemic prevention and control, and resumption of work and production. nucleic acid testing is carried out in close contacts and the public, etc., which helps to detect infected people early, especially those who have been infected with the virus but have not yet developed symptoms , so as to take isolation and treatment measures early, which can not only avoid infecting others but also reduce the risk of developing severe diseases.
nucleic acid sampling tube
Why separate single tube and mixed tube
single tube is a sampling tube that only puts one person's sample into one person's sample, and a mixing tube is a sampling tube that puts multiple people's samples into a sampling tube for testing, and there are 5 mixed 1, 10 mixed 1 and 20 mixed 1 sampling tube. isolation points and key groups should use single tubes. In order to improve detection efficiency, during large-scale nucleic acid testing, a sampling tube with 10 mixed 1 or 20 mixed 1 is generally used.
Why do some places often do
many rounds of nucleic acid screening?
nucleic acid detection is a "progressive" detection. Through real-time fluorescent polymerase chain reaction, a specific nucleic acid sequence in the viral genome is detected, thereby determining whether the person being tested is infected with the virus at this moment. In other words, nucleic acid test can only determine whether you are healthy when sampling. Whether the
Omickron strain can be detected may be related to the disease development stage, sampling and vaccination. If the concentration of virus in the body is not sufficient during nucleic acid testing and is lower than the lower limit of the detection, false negatives may occur; a small number of infected people may have interstitial detoxification. If the collection is not in the detoxification period, false negatives may also occur; if the sampling is not standardized and the virus cannot be collected, then missed testing may also occur; after a period of vaccination, even if the virus is infected, the antibodies produced by the human body will neutralize and remove the virus, resulting in a significant reduction in the detection rate of the virus. If the test is performed during the inhibition period, the viral load is low, which may also lead to inability to detect it.
Therefore, when an epidemic occurs in a place, in order to detect the pathogen more accurately, detect infected people as soon as possible, and cut off the virus transmission chain, multiple rounds of testing must be carried out in a timely manner. Moreover, judging from the fact that many cities in China have implemented nucleic acid testing for all employees, timely and quickly adopting multiple rounds of nucleic acid testing for all employees is not only effective, but also very necessary for epidemic prevention and control work.
Important things are emphasized again
Under the epidemic prevention and control, is it really necessary to multi-round nucleic acid
?
The answer is very necessary!
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, duration 1:21
Based on the above reasons,
need to carry out multiple rounds of nucleic acid testing for key areas and key personnel
to quickly and accurately detect potential infected people
so as to take targeted control measures in a timely manner
block the spread of the epidemic and control the spread of the epidemic
What are the precautions for nucleic acid testing
Regular nucleic acid sampling and testing are important measures to prevent the spread of the epidemic. At present, the epidemic situation is complex and severe, with multiple points, widespread and frequent occurrence. The demand for nucleic acid testing has increased, and many communities and units have set up nucleic acid sampling points. So, what things should we pay attention to before and after sampling?
. Understand the working hours of the local nucleic acid sampling points in advance and whether you need to make an appointment in advance. Carry ID card (children carry household registration book) and mobile phone (health code/travel code) to the nucleic acid sampling point in an orderly manner within the specified time.
. To avoid vomiting during sampling, try not to eat 2 hours before sampling. To avoid affecting the test results, please do not smoke, drink, or chew betel nut and chewing gum 30 minutes before sampling.
. To avoid cross infection, wear masks correctly and standardize before and after sampling. Do not expose your mouth and nose, and do not remove the mask at will.
4. Consciously abide by the on-site order, and keep a one-meter distance between when queuing, do not gather, and do not talk.
5. Actively scan the code and truthfully register personal information according to the staff's prompts. If you encounter a yellow code personnel, the staff should guide them to a sampling point specially set up by the yellow code personnel for collection.
6. When sampling, Try not to touch the sampling personnel's clothing , do not place any items (id card, key, mobile phone, bag, etc.) you carry with you on the sampling table, and do not touch the sampling table with your hands.
7. During the nucleic acid sampling process, when the current personnel have just finished the collection, the sampled personnel should not rush to sit down, and they should not take off the mask immediately. They should maintain a safe distance. After the doctor has finished the previous sampling, completed the hand disinfection, and took out a new cotton swab, then quickly go forward and sit down. When the doctor stretched out the cotton swab, he quickly took off the mask, and immediately put on the mask after cooperating with the doctor to take the sample.
8. After the sampling is completed, pay attention to hand hygiene . Those who have the conditions should use disinfectant tissues and hand-free disinfectant to wipe their hands, wear a spare mask, and put the discarded mask into the designated medical garbage bag. Leave the sampling point immediately after completing the sampling point to avoid spitting and vomiting around the sampling point.
Popular knowledge expansion:
For citizens, nucleic acid testing seems to have only two steps: register for sampling, wait for several hours and query the results on health code . In fact, behind these two seemingly relaxed steps, a lot of work by the inspectors of gene amplification laboratory (PCR laboratory ) is also condensed.The birth of a nucleic acid report will undergo sampling, sample transport, specimen registration, nucleic acid extraction, nucleic acid transfer, nucleic acid amplification, and result review... For details, please refer to ↓
Together to build a solid barrier to epidemic prevention
Please actively cooperate with
nucleic acid testing!
Source: Pingdingshan Disease Control, Health and Health
