The virus evolves, as it should, trying to increase its infectivity - nothing else interests it. How far she will go, no one knows. With the advent of a large proportion of people with immunity - natural or as a result of vaccination - the virus will, in addition, evolve so that the immunity created by old genotypes (and vaccines against them) is not to be feared - as the flu does. How successful he will be is unknown, but he must be prevented in every possible way. But how the virulence of the virus will evolve is unknown...