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In the middle of the coronavirus pandemic that was still raging around the world, many are always held on a golden concept that could change everything:immunity. That this should come from a vaccine or having already been infected with the virus, the idea that the population can be able to realize the immunity of the flock - and effectively prevent this deadly disease in its tracks - is a source hope. And a new study shows that we can already be closer to the immunity of Covid that we thought.

A study of July 15 published inNature found there isThree distinct groups that showed immunity At the coronavirus. The first consisted of Covid-19 patients with T cells - a group of immune cells that can kill the virus and serve as a line of defense against future pathogens. The next faction included people infected with the SARS virus in 2003 and also had these same T cells.

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But the final group was the most surprising of researchers: 37 study topics had T cells despite the fact that they were never exposed or infected with one of the diseases. This proves that we can all have some immunity to this strain of coronavirus integrated into our body.

"A level ofPre-existing immunity against SARS-COV2 seems to exist in the general population "Antonio Bertoletti, MD, a virologist at the School of Medicine Duke Nus in Singapore saidThe New York Times.

According to the study, this third type of immunity could have been triggered by cold, which is caused by a type of coronavirus more minor. The T cells of this sweet disease can not protect you from obtaining COVID-19, but they would reduce the severity of your case. Because so many people have been cold and thus would have these T cells - this can explain why a majority of people who have contracted COVID areasymptomatic or to havelight symptoms.

This evidence is saved by previous searches that have discovered Covid-19-Reactive T cells in40 to 60% of non-exposed individuals. The study of June 25 published inCell Concluded that these T cells identify a similar danger between COVID-19 coronaviruses and "cold".

When it comes to braking and containing Covid-19, Bertletti said: "I believe that cellular immunity and antibodies will be equally important." And if you want to know which areas of the United States have low antibody levels, discover95% of people in these states are still "very vulnerable" in Covid.