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It is one of the theories to explain how Some people who have never had contact with SARS-CoV-2 appear to have specific T cells to fight this virus. According to the report that appears in the study published in Nature, 85% of the cases analyzed among the infected had these cells, but 35% of the people who were never infected either.
Researchers have not yet been able to understand the origin of these cells or how well they are able to fight the Covid-19 virus. However, they speculate that These T lymphocytes may have been created from contact with other coronaviruses., that is, those that cause colds: “T cells in healthy individuals react to SARS-CoV-2 because they have previously been exposed to endemic coronaviruses of the common cold,” described Claudia Giesecke-Thiel, one of the authors.
“One of the characteristics of T cells is that they are not only activated by a closely matched pathogen, but also similar pathogens,” the researcher continued. Scientists call this mechanism cross-immunity, the same phenomenon that may be the cause of the lower incidence of Covid-19 fatality in areas with the highest vaccine coverage in Italy. But there is still no certainty on this issue and scientists continue to investigate.
Some are immune to the new coronavirus without ever having Covid-19
The new coronavirus is especially cruel to older people, but Survival cases have been reported among centennial patients. that have become symbols of hope. “P”, a 101-year-old Italian, is one of them: he was born during the Spanish flu, he survived the virus that killed millions of people around the world and now also escaped from Covid-19. Lina, also Italian, is another example: she came to the world during the First World War, she witnessed the Second World War, the Cold War, the Vietnam War and all the great conflicts of the 20th century. At age 102, she survived Covid-19.
In Spain, Máxima, a centennial from Albacete, was discharged from the hospital after two weeks of hospitalization. After much attention from health professionals, medications and a series of tests, she got rid of the new coronavirus and returned home with her son. “I think it endured the coronavirus because of the bad state it has,” he justified in an interview with a regional newspaper.
Across the Atlantic William Lapschies, an American WWII veteran, survived Covid-19 at age 104. The elderly man was one of the first people in Oregon to develop the disease and was forced to celebrate his birthday in confinement at the Edward C. Allworth Veterans Residence – employees hung balloons outside the home and let the family sing the congratulations from the distance. Then he recovered: “The virus has just disappeared,” he told a local newspaper.
No brazil, Maria José Bastos, 100, also survived the new coronavirus. In May, he complained of tiredness and shortness of breath. The Covid-19 test came back positive. María José had to be hospitalized for two weeks to receive oxygen, but she never needed a ventilator. His health improved day by day until, on July 4, he recovered. Upon leaving the hospital, she was greeted with applause.
“P”, Máxima and Lina were born in the middle of the Spanish flu. Now they survived COVID-19
