The husband has tested positive for coronavirus, but his wife is not infected even though they live in a house and every day she takes care of her husband.
Such cases are often reported all over the world, even in Albania. This has led to over 250 laboratories around the world investigating this, coordinated by Rockefeller University in New York.
“First, we focused on seriously ill people and found that there are 10-12% of cases that have a special genetic characteristic, which are not able to produce interferon, which is the first protective molecule,” he said. says Giuseppe Novelli, from the Tor Vergata polyclinic in Rome and president of the Giovanni Lorenzini Foundation in Milan.
Based on these tests, the study passed on to other genetic changes that bring about resistance to the virus, those that have natural immunity to Covid-19.
“Immunity is not created by antibodies alone,” Roberto Luzzati, a professor of infectious diseases at the University of Trieste, told Messaggero. “There is also the so-called cellular immunity. In this case it is essential to study the lymphocytes. “We have the so-called cell-mediated immunity in which the cellular immune system comes into play, which can protect you many times longer than antibodies that may disappear,” he said.
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