Now, we are most concerned about New Coronavirus, who is easy to be infected, and who is not easily infected, which is closely related to everyone. So are people with strong body and strong immunity not easy to be infected? Let's take a look at this article.
Because according to the instructions issued by the state issued the New Coronavirus pneumonia diagnosis and treatment plan (trial version fifth), New Coronavirus is generally susceptible to the crowd. This is not to say that people with strong immunity or strong body will not be infected, but these people may have mild or even no symptoms after being infected by the virus, but they will also carry the virus and become the source of infection.
1、 Who is not easily infected
People who are not easily infected by the virus are those who recover after being infected with the virus. Because these bodies produce specific antibodies, which are resistant to New Coronavirus. Antibody maintenance time is related to personal constitution and virus characteristics. It is not easy to determine the specific time. But usually, in the recent months, as long as the antibodies do not disappear and the virus does not mutate, they will not be infected again.
There is also a possibility that people infected with other viruses first. For example, if a person first contracted a common cold virus, he would have a lower risk of contracting New Coronavirus again. Because there is a certain competitive relationship between viruses, they will inhibit each other in the same human body. However, this inhibition is not absolute. A small number of people will still be infected with multiple viruses at the same time.
2、 People are generally susceptible
For New Coronavirus, all human beings are susceptible hosts. Because New Coronavirus needs to enter living cells to carry out replication and proliferation and other life activities. But there is a cell membrane on the cell surface, so it is not easy to enter. Therefore, New Coronavirus must be combined with the angiotensin-converting enzyme 2 receptor protein (ACE2) on the cell surface before it can be mixed into the cell.
This ACE2 is found everywhere in the human body. It exists in the endothelial tissue and smooth muscle cells of almost every organ, especially in the lungs and small intestine. So after being infected by New Coronavirus, it is mainly manifested as pneumonia, and some patients will have digestive symptoms.
Here, because cats and dogs have no ACE2 on their cells, New Coronavirus will not enter cats and dogs, so dogs and cats will not infect viruses. However, cats and dogs that often come into contact with the external environment, such as stray animals, do not rule out that the body surface hair will be infected with the virus. Therefore, during the epidemic prevention period, pets at home should go out less. If you go out, wash it in time after you go home. Don't 'Roll' strange cats and dogs outside.