Wu Hanjun sorted out
(Bloomberg, New York) More new studies have shown that although Omikon, Omi Rong, crown disease has surged, has not increased significantly in severe cases.The results of these studies may mean that the crown disease has entered a new stage that is not so worrying.
The immunologist Monica Gandhi, a University of California San Francisco, said: "We are now in a completely different stage.Omikon) will stimulate sufficient immunity, thereby calming the popularity. "
The series of research data of the past week shows that immune expansion and a large number of mutations have prompted the seriousness of Omikon RongFar lower than the new poison strains appeared.A study in South Africa found that compared with the Delta epidemic, the possibility of being admitted to the hospital during the Omircor epidemic was 73 % lower due to severe illness.
After being discovered in South Africa a month ago, the most concerned about the scientific community was mainly due to a large number of mutations, and many of them still occurred on spiny protein.These mutations not only make the virus easily infect those who have not been vaccinated, but also avoid the antibody response caused by the vaccine after healing.
One of the reasons for the lower severity of Omikon is that it has a weak ability to penetrate into the lungs.Crown disease infection usually starts from the nasal cavity and then expands to the throat.Mild symptoms generally mean that the virus is infected with the respiratory tract. If it invades the lungs, more severe symptoms will occur.
Experts: Although it is more likely to infect the respiratory tract Omikon's ability to invade the lungs
Five different studies published in the past week show that OlympicMichara will not be infected with the lungs as easily as the previous strains.
One of the studies jointly jointly conducted by Japan and American scientists showed that compared with the previous strains, hamsters and mice were much less lung after infection with OmircongIt is also low.
Another study of Belgium obtained similar results on Syrian hamsters.Syrian hamsters have particularly serious symptoms after infection with other strains.
Scientists in Hong Kong have also found that after studying the diagnosis of patients' lung tissue samples, Omikon's growth rate is slower than other strains.
The immunist at the University of Cape Town, Wendy Bergs, said the change of virus sinus force is likely to be related to changes in the virus structure.The previous strains invaded the cells with two ways. Omikon changed due to spiny protein. It presented one of the ways, that is, it seems that it is more likely to infect the respiratory tract instead of the lungs.This may be why this kind of infection is not serious, but because the virus will copy more in the upper respiratory tract, it is easier to spread.
Although Omikon is more good at avoiding the antibody response as the first line of defense, recent research shows that it is difficult to avoid the T cells and B cells produced after the healing of vaccines and infection.If the antibody cannot prevent the virus, T cells will attack it after the virus invades the cells.
After studying the white blood cells of the patients with crown disease, 70 % to 80 % of T cell reactions were retained.Those who have vaccinated the vaccine or have been infected with crown disease in the past six months, T cells in the body are likely to identify Omikon and quickly repel them.This is likely to be the cause of the symptoms caused by Omikon than other strains.
Nevertheless, if the case continues to surge, the absolute number of hospitalization and death cases will still rise, even if it rises slowly.
The University of California Gandi said that although the number of cases may be a record again, Omikon's high infection and low pathogenic force may indicate the beginning of the end of the epidemic.She pointed out that another study published last week in Hong Kong showed that the strong immune response generated by the infection with Omikon was sufficient to resist other types of coronal virus strains.
She said: "I hope that this strain can produce sufficient immunity in the crowd, it is expected to end this great popularity."
