I was in Henan, I made nucleic acid last night, and I want to make nucleic acid this morning. What is this?

1, your nucleic acid detection reagent is positive, but the current nucleic acid detection is carried out in groups to reduce costs. In order to further screen who is positive, people who have done nucleic acid testing before will be asked to do it again.

2. A new COVID-19 epidemic broke out in the local area. If there is a new COVID-19 epidemic in the local area, in order to confirm that the epidemic will not spread further, and to further count the number of patients infected with COVID-19, the relevant departments have asked for a second nucleic acid test.

In order to improve the accuracy of the test for two consecutive days, your posture is relatively stable. For example, if the interval between fruits is long, then the first two tests are meaningless, the first test is meaningless, the new ring is connected with people, and then the second test is positive. There is comparability before and after, which needs to be reconfirmed.

Later, in order to improve the efficiency, a group of 10 people and 10 people were sampled and put together for a test: if it is negative, all parts are negative. If the result is positive, take the second sample from the 10 people in this group (two samples are taken from one, and only one sample was used when the 10 people started the test, and one sample was useless), and then there is no need to test separately, saving time and effort.

When COVID-19 is infected by the original strain, the infected person often has obvious or strong physical reactions, such as fever, dry cough, general weakness and other symptoms. The virus has undergone many mutations, such as Delta and Omicron, and some people do not feel obvious after infection. In this case, it is easy to lead to covert transmission, such as Xi' an epidemic and Tianjin epidemic.

Whatever the reason, as citizens, they should actively cooperate with the government's relevant epidemic prevention measures and the deployment of nucleic acid testing. This is not only responsible for our personal health, but also to give everyone a good living environment, so as to avoid the COVID-19 epidemic further affecting people's normal life needs.