Talking about the detection of epidemic antigen

First of all, the significance of antigen detection lies in screening specific people, which is conducive to improving early detection ability. The accuracy of nucleic acid detection is higher than that of antigen detection, and the cost of antigen detection may be lower than that of nucleic acid detection, which can be used as a supplementary means of nucleic acid detection. ? The requirements of nucleic acid detection are relatively high, which requires laboratories, PCR machines and operators to have certain skills and qualifications. Before the outbreak of COVID-19, nucleic acid testing could only be carried out in big cities, but now this technology has been? Rapid decline. However, the cost of township hospitals with detection ability is still high. ? He told reporters that in contrast, antigen testing will be easier.

Secondly, the significance of antigen detection is that it can be operated quickly and complete screening for people who are isolated and concentrated at home. If the screening results are positive, they will go to a professional institution for further diagnosis. Generally, it is also suitable for this kind of people, or basic hospitals that do not have the conditions to carry out rapid screening of nucleic acid detection. Because antigen detection is convenient, it can be detected without going to the hospital, and whether there is virus infection can be easily detected under the condition of insufficient nucleic acid resources. Once the antigen is detected, it can basically be diagnosed, which is conducive to improvement? Early detection? Ability.

In addition, antigen detection is widely used to detect infectious diseases in humans and animals. At present, consumers can buy antigen detection reagents for pathogens such as Helicobacter pylori, hepatitis B virus, Chlamydia trachomatis, Neisseria gonorrhoeae and feline calicivirus in the market. The principles of nucleic acid detection and antibody detection are different from antigen detection. With the continuous expansion of vaccination population in China, the role of antibody detection in screening is no longer obvious.

Then nucleic acid detection will be more accurate than antigen detection. In COVID-19, it is still the basis of infection diagnosis, but antigen detection is a supplementary means of screening. If it is positive, it can basically be diagnosed. Improve sensitivity and positive rate, or diagnose by nucleic acid detection. So you can test it at home for a few days. If it is not detected, the risk of infection is very low.