Japanese scientists from the National Institute of Genetics and Niigata University said that the "delta" strain of COVID-19 stopped multiplying due to an excessive number of mutations and the virus began to self-destruct naturally. This is how scientists explain the sharp decline in the incidence of coronavirus infection in the country: at the end of August, the Japanese detected twenty thousand patients daily, and now new cases do not exceed a hundred people a day with a population comparable to ours.
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