The virus changes again

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New option Koronavirus AY.4.2 is revealed to Russian Federation. It "to news agencies was declared by the head of scientific group of development new methods of diagnostics of diseases of the person of central research institute of epidemiology of Federal Supervision Agency for Customer Protection and Human Welfare Khafizov Kamil. The AY.4.2 option is only one of a set of branches of the delta line which can have some advantages before initial and...