Coronavirus is evolving. Whether it gets deadlier or not may depend on us | Coronavirus | The Guardian
Basically, if a disease causing virus can hop easily from host to host, a more virulent and deadly strain can thrive (it can pass person to person before it kills the host). If there is social distancing and other measures, a more deadly mutation will die out before it can find new hosts and less severe strains will evolve that can pass asymptomatically.
It seems the death rate in Sweden is much higher than neighbours and I guess they are spreading a stronger strain of virus.
Basically, if a disease causing virus can hop easily from host to host, a more virulent and deadly strain can thrive (it can pass person to person before it kills the host). If there is social distancing and other measures, a more deadly mutation will die out before it can find new hosts and less severe strains will evolve that can pass asymptomatically.
It seems the death rate in Sweden is much higher than neighbours and I guess they are spreading a stronger strain of virus.
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