On contagious, Omikeron's ability to "unlock" is 2.8 times that of Delta!

Not long ago, global disease experts predicted that after experiencing the "wave of infection" caused by a series of mutated strains such as alpha, beta, delta, etc., countries are expected to gradually get rid of the pandemic by 2022 through vaccination, herd immunity and so on. However, the appearance of Aomi Kerong broke through this expectation. Since its discovery in mid-November last year, Omiljung has spread like wildfire around the world, and it has also blossomed in many places in China.

American epidemiologist Fauci warned that because of its "unprecedented" transmission power, it "will eventually find almost all of us." Why did Aomi Keron spread so fast? How contagious is it? What determines its contagiousness?

Chen Jieliang, associate professor of Shanghai Medical College of Fudan University: The new crown epidemic has been two years since today, and there are many mutants in the middle, alpha, beta, gamma, delta, and now Omicron, its transmission nature should be said to be getting stronger and stronger, one of the keys to determining the spread of the virus is its binding ability of spike protein and our cell receptors.

We usually say that just like a thief wants to open a lock, how about its ability to "open the lock", and studies have shown that The "unlocking" ability of Aumilon is 2.8 times that of Delta, so it is easier for it to invade cells from a pathogenic point of view.

The second point is that after the infection of the virus, it causes this asymptomatic infected person, as well as the case of hidden infection, so in some countries, including our country, a lot of traceability brings a lot of difficulties, and the traceability is very difficult. Its concealment is stronger, which also brings a very good condition for its spread.

The third point, there is another reason, mainly with the weather may also have a certain relationship, because it is winter, we know that our respiratory tract itself has a self-protection ability, it will have some mucus secretion, we respiratory epithelium will have some cilia, including our nose hair, are playing an important role in blocking pathogens into the respiratory tract or into our lungs, winter In general, the air is relatively dry, our mucus layer is easily broken by these viruses, so I think it should be a comprehensive reason, There are causes of the virus, there are also reasons for the immune background of our population itself, but also our weather and some objective factors.