Notification of nucleic acids between the two places will no longer be free! Interpretation of ＂nucleic acid frequency reduction＂ by infectious disease experts

How many days has your nucleic acid been? Recently, some parts of the country "stopped" the normalization of nucleic acid testing, some cities returned to "self-funded" testing, and some areas "down-regulated" the nucleic acid testing. Some netizens expressed envy, some netizens felt helpless, and there were more and more related discussions. After the normalization of nucleic acid was cancelled, how should citizens balance their travel life?

Nucleic acid returns to "self-expense" and "frequency reduction"　

Chengdu: cancel the free, willing to complete the inspection.

On August 13th, Chengdu announced that normalized nucleic acid testing was no longer free. In addition to the key population and those who enter Sichuan for immediate inspection according to the original policy, the remaining "willing to complete the inspection" personnel will charge the nucleic acid testing fee according to the relevant standards.

Shanghai: Free nucleic acid extended until the end of September.

Since the implementation of normalized nucleic acid testing in Shanghai on June 1st, the free testing service has been extended many times. On August 14th, Shanghai announced that it would be extended to September 30th. At present, citizens should conduct nucleic acid testing at least once a week, and then make corresponding adjustments according to the risk judgment of epidemic situation.

Tianjin: Free once within 7 days, others at their own expense.

Starting from August 20th, Tianjin will take every 7th day as the cycle of normalized nucleic acid testing, and provide a free nucleic acid testing for the masses within 7th day, and other needs will be paid at their own expense. Starting from September 3rd, inspection will be started in all kinds of public places and means of transport with location codes, and those who fail to do so are not allowed to enter.

In fact, since the end of May, some areas have cancelled the normalized nucleic acid test or checked the nucleic acid certificate one after another. However, in the past two months, there have been cases in some areas. With the repeated epidemic, some areas have recently "restarted" all the nucleic acid tests. For example, Hai ‘an City, Jiangsu Province has suspended the normal inspection of regional nucleic acid detection since June 13, and issued a document on August 15 to conduct "three days and two inspections" for all employees in the city.

Normalized nucleic acids play an early warning role

　 "Normalized nucleic acids have played a significant role in case screening and discovery in previous places." Yu Xuejie, dean of the School of Health of Wuhan University and an expert on emerging infectious diseases, said that normalization testing did play an "early warning" role in some areas, for example, it played a very important role in the prevention and control of epidemic situation in Shenzhen.

He further explained that when a case is found in a certain area and it is speculated that there may be a certain range of community and population transmission, it is necessary to carry out normalized nucleic acid testing. If it is not tested, it is impossible to screen out infected cases. Especially at present, Omicron mutant is the main strain, which has the characteristics of fast spread and strong concealment, and most of them are asymptomatic infected. Normalized nucleic acid detection can ensure that cases can be screened out at the first time, and isolation control measures can be taken quickly to avoid a wider range of infection.

Yu Xuejie believes that normalized nucleic acid detection guarantees the health of healthy vulnerable groups and key groups. Although the toxicity of Covid-19 is weakened at present, it is not excluded that the virus will continue to mutate and mutate in some groups with poor immunity. Even vaccination may lead to an immune breakthrough, resulting in an increase in the hospitalization rate and mortality rate of the elderly, children and sick groups. Therefore, when there are large-scale cases, normalized nucleic acid detection is a very effective prevention and control measure.

Detection of nucleic acids should not be the norm.

"Nucleic acid detection can be normalized, but it does not mean that it is a normal state." Yu Xuejie said that at present, the decision to cancel the normalization of nucleic acids in some cities is based on the current situation of local epidemic prevention and control, so it is slightly different. But basically, it can be agreed that normalized nucleic acid detection is unnecessary when the epidemic situation is basically stable or dynamically cleared.

Yu Xuejie said that this is mainly due to two reasons: First, cost control. For example, if a city with a population of 10 million carries out a nucleic acid test in the whole city, it will cost 80 million yuan if it is counted as a single 8 yuan. To bear this cost for a long time, the pressure on the city is really great, and "stopping" or "reducing the frequency" is a more reasonable choice. Second, comprehensively measure the necessity. Here we should pay attention to two points, one is the duration of nucleic acid effectiveness, and the other is the initiative of the masses to voluntarily test.

It can be seen that the normalized nucleic acid detection should be stopped when the epidemic situation is stable. Earlier, He Qinghua, the first-class inspector of National Health Commission CDC, clearly pointed out at the press conference on June 9: "If there is no epidemic situation and there is no input risk, nucleic acid inspection should not become a normal state."

It is relatively reasonable to do it once every 2~4 days.　

In the novel coronavirus Prevention and Control Plan (Ninth Edition), the Regional Nucleic Acid Detection Strategies in Different Scenes of the COVID-19 Epidemic, which was released as an attachment, divided the nucleic acid detection strategies in different regions:

Big cities:Only when cross-regional transmission and large-scale community transmission occur at the same time in provincial capital cities and cities with a population of more than 10 million can nucleic acid detection be carried out in the whole city. The rest of the situation is adjusted according to social cases.

General city:Small and medium-sized cities have limited urban areas, and the state allows temporary full-time nucleic acid testing. However, the counties, towns and other places around the urban area do not need to be tested for all the nucleic acids because they are separated from the urban area.

Rural areas:Counties, townships and villages are the weak links in epidemic prevention and control, and all-staff nucleic acid testing has become a necessary means. However, there is a limit to the total nucleic acid. Without social infection, it is not allowed to carry out total nucleic acid for any reason.

How often is it more appropriate for everyone to do nucleic acid?

Yu Xuejie believes that nucleic acid testing should be carried out according to the suggestions of the local epidemic prevention and control department. Canceling the normalization of nucleic acid does not mean that nucleic acid will never be used again. There is really no need for frequent nucleic acid testing in low-risk areas and low-risk people. If there are a few sporadic cases in this area, it is best to do nucleic acid once every 2-4 days. Because of the short incubation period of mutant strains, nucleic acid once every 7 days is not conducive to discovery.

Yu Xuejie reminded that the focus of nucleic acid testing should be on high-risk people and staff in high-risk positions, such as airport staff, doctors, cold chain transport workers and other groups. Manage entry and exit checkpoints, and pay attention to foreigners in high-risk areas. If you need to leave the local area, you should follow the requirements of nucleic acid detection in the destination city and try not to travel to high-risk areas. When going to shopping malls, office buildings, public transportation and other public places, you should still wear masks, wash your hands frequently and gather less. It should be noted that after paying for nucleic acids at their own expense, a small number of people will inevitably slack off and stop doing nucleic acids. It is necessary to pay more attention to this group of people.

Source: Global Times

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