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Expert interpretation: What is the detection mode of "antigen screening + nucleic acid diagnosis"?

Expert interpretation: What is the detection mode of "antigen screening + nucleic acid diagnosis"?

Starting today (March 26), nucleic acid screening in key areas and antigen testing in non-key areas will be carried out in many parts of the country. What is the "antigen screening + nucleic acid diagnosis" monitoring model? How are the two screening methods different? In response to everyone's questions, listen to the authoritative interpretation of disease control experts.

Disease control experts said that Nanjing has begun to use the "antigen screening + nucleic acid diagnosis" monitoring model.

Ding Jie, deputy director of the Nanjing Municipal Center for Disease Control and Prevention, pointed out: "Because there are some sporadic cases of Aomi Kerong in many parts of the country at present, everyone knows that the transmission speed of Aomi Kerong is very fast and more contagious, so the demand for testing will be greatly increased, and the speed of detection is higher, and it is necessary to screen out some infected people in a shorter period of time, and carry out some related control measures as soon as possible, at this time the difficulty of prevention and control is increased, if we completely rely on nucleic acid testing, There may be no way to meet the existing testing needs, this time we take antigen detection as a supplementary means, which is why we are actively promoting, nucleic acid detection plus antigen detection. ”

Expert interpretation: What is the detection mode of "antigen screening + nucleic acid diagnosis"?

Currently, which populations are suitable for antigen testing? "At present, there are three groups of people who are suitable for antigen testing, one is the primary medical and health service provider, if it is accompanied by some respiratory tract or fever and other symptoms, and these people are within 5 days of symptoms." The second is the isolation of personnel for observation, including those such as home isolation observation, close and sub-close contact, entry isolation observation, sealing and control area and control area of these personnel. The third is that people who need antigen testing, if they have fever, cough and other related symptoms, are worried about people infected with the new crown virus. Ding Jie said.

Disease control experts said: "Antigen detection and nucleic acid detection complement each other, because the principle of their detection, as well as including their two methods are each with their own characteristics, so it is as a mutual supplement, but can not replace nucleic acid testing, why should we carry out antigen detection, that is, and the virus to compare time, because the virus spread speed is particularly fast, so after the combination of the two methods, we can run in front of the virus, timely control of the source of infection, should be said to be a double insurance model, What needs to be reminded here is that because the antigen detection reagent, its own sensitivity and specificity characteristics, so antigen detection is applied to the detection of high-risk, high prevalence of clustered infected people, the general population do not do antigen detection at will. ”

Expert interpretation: What is the detection mode of "antigen screening + nucleic acid diagnosis"?

In addition, in order to promote the fairness and accessibility of the new coronavirus antigen testing, reasonably control the price level, and reduce the social and economic burden, the Office of the National Medical Insurance Bureau issued the "Notice on Strengthening the Price Management of the Novel Coronavirus Antigen Testing" on the 25th, which clarifies that the provincial medical insurance departments should set a capping standard for the total amount of fees charged for the "price items + test reagents" of the new coronavirus antigen testing, and the capping standard at this stage shall not be higher than 15 yuan per person, and the capping standard can be lowered to a more reasonable level if possible.

Expert interpretation: What is the detection mode of "antigen screening + nucleic acid diagnosis"?

(Source: Jiangsu Radio and Television Rong Media News Center/Fang Chen Editor/Li Shi)

Source: Litchi Network

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