It has been nearly three years since the global pandemic. The United States, which has the largest number of people infected with the epidemic, estimates that about 95 million people across the country have had at least once COVID-19.
Even though the epidemic is everywhere, there are still people who have not been infected with " day choice " that has not been infected yet, but the reason is not pure luck or no friends, but related to genetics and immune system.
Scientists have not found the exact answer yet, but a cell in these tracheal mucosa may be the reason why they become "the chosen one".
Comprehensive foreign news report, Pennsylvania resident Andrew Bangent and his wife have not been infected with COVID-19 so far. They themselves don’t know why this is the case, but they are just lucky and proud of it. These people are called "the super-candidates of COVID-19" in the United States (COVID-19 superdodgers, the nickname of God's Chosen), and in the eyes of scientists, this is not the only one.
In the early stage of the pandemic, scientists from many countries had actually formed the "Covid Human Genetic Effort", which studied the severity of symptoms that different individuals had after infection through genetic perspectives, and found that some people were not infected even if they were exposed to high-risk environments for a long time, which aroused the interest of scientists.
Scientists are recruiting from the world, hoping to recruit people who have not been infected with the virus so far as to be the subject of experiments. High School of London HD professor of viral immunology, Mala Maini, a team of professors of viral immunology at University of London, conducted intensive monitoring of medical staff exposed to high-risk environments, who should be infected but not infected, and compared another set of blood samples frozen before the outbreak. After the control sample, although there were only 10 people in the research team, among these "selected people", as many as 6 people had cross-reactive T cells in the trachea. Maine is working with the team at at Oxford University to study a new vaccine. They say that this T-cell in the tracheal mucosa can not only protect people from COVID-19, but also against many coronaviruses. They said that the vaccine developed from this point can be more effective than the vaccines on the market to prevent the re-mutation and transmission of the COVID-19 virus.
Meni pointed out that the current vaccines are all researched and developed for spike protein, but spike protein can be mutated. Vaccine developed for T cells can fill the nasal cavity and throat of the vaccinator to prevent human infection, and ideally prevent the possibility of animal transmission.
Home physician Wots (Scott Woods) said that in the past two and a half years, he has been exposed to high-risk environments, but none of them have been confirmed. He originally thought he was classified as a chosen person, but with the epidemic of mutant virus BA.5, he has also been diagnosed. As the virus evolves, it is more infectious.
So far, scientists have learned that "HLA-B*15:01" is a gene that is possessed by people infected with the epidemic but have no symptoms.
