Scientists say some people may never contract Corona virus thanks to their genes, as Oxford University researchers found that people with a certain mutation produce a greater response to antibodies after vaccination.
About 30-40% of people have the gene known as HLA-DQB1 * 06, and the enhanced protection may be enough to completely prevent infection and may partly explain why some people do not contract the virus, even when family members they have it.
The United States has the largest number of confirmed cases of any country in the world with 179 million, which equates to more than half of the total population, but this is likely to be inaccurate, because the tests were incomplete at the start of the outbreak and some people have never done that.
However, there are many anecdotal stories of people who have infected their entire family with the virus and avoided infection even after sharing a bed with a sick person.
This group of people has been nicknamed “Mai Covid” and scientists have never figured out how to handle it.
Lead researcher Dr Alexander Mintzer said, “We have seen wide variation in the rate at which people test for COVID after vaccination and our results suggest that our genetic code may affect the likelihood of this happening over time.” .
The scientists examined blood samples from people in five different experiments, which looked at 1,600 adults who received the “Pfizer-BioNTech” vaccine or the “AstraZeneca” vaccine as a starting dose, and it was found that individuals who have this gene they have a high percentage of proteins that protect the body: there are more viruses in the blood than those without this gene.
They also looked at a group of people who had Covid testing every week for more than a year after receiving the first dose, and those with the HLA-DQB1 * 06 gene are unlikely to have contracted the virus in a 12-month period. .
Co-author Professor Julian Knight added: “From this study we have evidence that our genetic makeup is one of the reasons we differ from each other in our immune response after vaccination against Covid.”
