Corresponding Member of the Russian Academy of Sciences, Head of the Cell Proliferation Laboratory of the V.A. Engelhardt, Professor Pyotr Chumakov said that Russians who did not have COVID-19 could have previously suffered an infection caused by another coronavirus, which gave cross-immunity, which protects in the current pandemic. It is reported by URA.RU.

“There are very few such people, but they exist. It is not clear why they do not get sick. They may have once carried another coronavirus infection that gave them cross-immunity. In general, this issue is unknown, but, on the other hand, many people suffered the infection asymptomatically, ”Chumakov said.

According to Anatoly Altshtein, a researcher at the Gamaleya Research Center for Epidemiology and Microbiology, virologist, people who have never been ill have specific immunity. He emphasized that they may have a reduced number of receptors, as well as other protective mechanisms that experts do not know about.

Earlier, Candidate of Medical Sciences, immunologist Nikolai Kryuchkov told why you should not take immunomodulatory drugs to prevent SARS, influenza or coronavirus infection.

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