Shanghai continues to carry out district-level “antigen + nucleic acid” combined screening. Is continuous testing necessary?

Shanghai continues to carry out zoned and graded "antigen + nucleic acid" combination screening. Continuous testing is necessary. This is because there are more infected people in this epidemic in Shanghai, and there are more asymptomatic infections. , In addition, this virus has a certain incubation period in the human body, so we cannot guarantee on which day the virus will appear. Only through continuous antigen testing or nucleic acid testing can we detect the virus as soon as possible. Confirmed cases should be identified within a certain period of time, and cases should be quarantined in a centralized manner in a timely manner. Therefore, daily antigen and nucleic acid testing is very necessary. 1. The virus has a certain incubation period.

Multiple rounds of nucleic acid testing are performed because the virus has a certain incubation period. The incubation period of the new coronavirus cannot be detected through antigen or nucleic acid detection, but there is a certain danger during the incubation period and the virus can be transmitted, because nucleic acid testing must be carried out in time, only in this way can the virus be discovered as soon as possible existence, isolate the sick patients in a timely manner. 2. Antigens and nucleic acids have different advantages.

Antigen and nucleic acid testing have different advantages. Nucleic acid testing requires professional medical staff to operate, and it is relatively accurate, but it requires a large number of staff and people to queue up for nucleic acid testing. Moreover, it requires a lot of manpower and time from accounting and sampling to the nucleic acid results. Compared with nucleic acid sampling, antigen testing is much more convenient, and people can complete it by themselves according to the instructions. 3. There are relatively many infection cases in Shanghai. ?

Looking at the current situation in Shanghai, it is very necessary to carry out antigen testing and nucleic acid testing. This is because there are many people infected and the coverage is relatively large. If we want to control the development of the epidemic, we only need to We can conduct round after round of screening, carry out containment management, and screen out as many infected people as possible within a limited time. Only in this way can we control the development of the epidemic and ensure everyone's safety.