China News Service, Beijing, May 23 (Zhang Yilin) Recently, the number of new local infections has declined, but the epidemic prevention and control situation in some areas is still severe and complicated.
What is the latest epidemic situation?
What happened to the "false positive" nucleic acid test?
On the 23rd, the Joint Prevention and Control Mechanism of the State Council held a press conference to respond to hot topics of public concern.
On May 23, citizens took samples at a normalized nucleic acid detection sampling point in Wangjing Street, Chaoyang District, Beijing.
Photo by China News Agency reporter Hou Yu
Speed up the handling of clustered epidemics without simplification and one-size-fits-all
Mi Feng, spokesperson of the National Health Commission and deputy director of the Publicity Department, said at the meeting that my country's existing local confirmed cases and asymptomatic infections have declined for 27 consecutive days, but new local clusters have occurred. The situation remains grim and complex.
It is necessary to focus on the prevention and control of the port area to strengthen the import of foreign defense, and to guard against people, objects, and the environment, and resolutely defend the line of defense.
To speed up the handling of clustered epidemics, find and eliminate epidemic risk points in a timely manner, all inspections should be carried out, all receivables should be collected, all should be separated, and all should be treated.
To improve the normalized monitoring mechanism, provincial capitals and cities with a population of more than 10 million have established nucleic acid "sampling circles" within a 15-minute walk, so that people can conduct nucleic acid sampling nearby.
Carry out regular nucleic acid testing, increase the frequency of testing in key industries and populations, and improve early detection capabilities.
It is necessary to improve the classified treatment system, establish a gradient admission and two-way referral mechanism, and plan and prepare designated hospitals, makeshift hospitals, and centralized isolation points in advance to avoid a run on medical resources.
Efforts must be made to control the epidemic without affecting the basic medical care and life of the masses, and implement various prevention and control measures in accordance with laws and regulations, and not to simplify and one-size-fits-all.
We must focus on the elderly, and orderly promote homologous and sequential booster immunization of the new coronavirus vaccine.
The steady decline of the national epidemic situation further narrows the scope of the epidemic
Lei Zhenglong, deputy director of the National Health Commission's Disease Control Bureau and first-level inspector, said that recently, the overall epidemic situation across the country has shown a steady decline.
In the past week, the number of new local infections in the country has dropped to less than 1,200 every day, and the scope of infection has further narrowed.
At present, the epidemic situation in Shanghai continues to improve as a whole, and the number of newly reported infections has continued to decline, with less than 1,000 new cases per day for 8 consecutive days. However, the pressure of anti-rebound is still high, and individual points and community risks are still fluctuating. Epidemic prevention and control The results still need to be further consolidated.
The clustered epidemic in Beijing and sporadic cases are intertwined, and there are still risks of infection transmission in local areas and key groups.
The Linshui epidemic in Guang'an, Sichuan is in a period of fluctuation and decline, and the risk of epidemic transmission is lower than that in the previous period.
There have been clusters of epidemics in Tianjin and Jilin recently, and it is necessary to speed up the detection and investigation of risk points.
The epidemic situation in Henan, Anhui, Jiangxi, Liaoning and other places has been effectively contained, and the epidemic situation has stabilized.
On May 20, medical staff checked the status of Beijing HealthCare of citizens queuing up.
Photo by China News Agency reporter Jia Tianyong
Try not to leave the country unless it is necessary and not urgent
Liu Haitao, director of the Department of Border Inspection and Management of the National Immigration Administration, said that currently group travel activities abroad are still suspended, and individuals are not encouraged to travel abroad, visit friends and visit friends.
Those who have relevant plans fully consider the higher risks and uncertainties of international travel during the epidemic, try to stay out of the country for non-essential and non-emergency situations, effectively protect personal health and life safety, and jointly maintain the hard-won results of the epidemic prevention and anti-epidemic strategy.
According to the deployment requirements of the National Immigration Administration, for going abroad to participate in epidemic prevention and anti-epidemic, medical assistance, transportation of disaster relief materials, transportation of production and living materials; participate in key engineering projects and organized labor dispatch, employment; engage in business, scientific research, study abroad, examinations, Academic exchange activities; for medical treatment, taking care of critically ill patients, handling relatives’ funerals, caring for the elderly, children, pregnant women, attending relatives’ weddings and graduation ceremonies, family reunion, handling overseas emergencies and other necessary reasons, as well as other urgent personal affairs, the immigration management agency Entry and exit documents will be approved in a timely manner, and if the situation is particularly urgent, the convenience of a "green channel" will also be provided.
What causes "false positives" in nucleic acid tests?
Guo Yanhong, an inspector of the National Health Commission's Medical Administration and Hospital Administration Bureau, said that although the specificity of nucleic acid testing is 100%, in actual work, the laboratory may cause false positives due to some contamination during the experimental process and operation.
Analyzing the reasons, the sources of pollution are generally divided into two aspects. On the one hand, it is the leftover pollution of the amplification products. In the process of large-scale nucleic acid detection, due to the large sample size, the continuous working method of “stopping people without stopping” is adopted. , so cleaning between each round of amplification detection may not be in place.
At the same time, there is no guarantee that each amplification tube is airtight, which may cause false positives.
In addition, cross-contamination may occur between samples during the testing process, such as positive samples or the use of quality controls that contaminate samples that were originally negative.
After it is made, it is a false positive due to cross-contamination.
In addition, there are individual laboratories including technicians who do not strictly follow the prescribed work procedures, which will also cause false positive results.
None of these situations actually means that the sensitivity of nucleic acid testing to the Omicron strain has decreased.
Nucleic acid detection is still a key technical means to detect the new coronavirus.
She said that on the basis of strengthening the inter-laboratory quality assessment work, the supervision and inspection of nucleic acid testing institutions should be further strengthened, with special emphasis on practicing according to the law and strictly testing the quality.
For violations of laws and regulations, we must resolutely investigate and punish them, and report them nationwide.
Data map: A corner of Area B of Fangcai Hospital in Guang'an City, Sichuan Province.
Photo by Liu Yuran
Building a makeshift hospital is not a sign of a serious epidemic
Guo Yanhong said that the construction of makeshift hospitals is by no means a sign of a serious epidemic.
Instead, according to the characteristics of the Omicron variant, the response process should be done quickly and be prepared.
Under the situation of normalized epidemic prevention and control, preparing a certain number of makeshift hospitals, on the one hand, can rapidly expand the treatment beds in the shortest time and reduce the occupation of normal medical resources.
And it can achieve "bed waiting for people" in a very short period of time, so that everything should be received and treated.
At the same time, it can also coordinate the prevention and control of the epidemic and normal medical services, which not only ensures the treatment of new coronary pneumonia, but also guarantees the normal medical services for our people.
Therefore, makeshift hospitals are of great significance to achieve such a goal.
(Finish)