More than 1.8 million cases of the virus have been detected in Scotland since records began in 2020. Several people have also been re-infected with Covid on more than one occasion – something that is now reflected in the daily figures published by the Scottish Government. And there were several people who managed to avoid catching the virus completely. Dr Cliona O’Farrelly, a professor of comparative immunology and biochemistry at Trinity College Dublin, said this could be due to four main reasons. Read more related articles Read more related articles He said some people managed to avoid it due to socioeconomic backgrounds, generally good health, careful behaviors and a rare innate immune response, Dublin Live reports. “How people live has a lot to do with their circumstances and, moreover, this is what we are looking for in this percentage of people who have what we would call an innate immune signature,” said Dr O’Farrelly. . “The innate signature of the immune system that identifies resistance, so I think these four things are really important: your socioeconomic status, your general health well-being, the way you behave and then this innate resistance.” Dr. O’Farrelly also worked for several years on a study of women who contracted hepatitis C through blood transplants and why some women did not become infected with the virus, which she believes is due to the innate immune response similar to Covid-19. She explained: “We now have data that uninfected women have had a more innate immune response, this is an immune response that starts immediately after treatment for the virus and is the part of the immune system that is exactly where the virus is located. . “Many people are not infected because they are extremely careful and deserve congratulations. “But in addition to people who do not get it because they are very careful, there are those with an innate immune system and we believe that the innate immune system is able to keep the virus away without being infected at all.” Covid cases have recently increased further in Scotland following the emergence of the BA.2 Omicron subtype. The number of people with Covid currently in need of hospital care has reached 2,000, some of the highest rates seen during the pandemic. Earlier this week, Nicola Sturgeon said there were “reasons for optimism” amid hints that the latest Covid wave may have peaked. Do not miss the latest news from all over Scotland and beyond – Subscribe to our daily newsletter here.