The new strains seem to be no more lethal, but more contagious, possibly so contagious they may be able to spread in a population that is fully vaccinated and w

The new strains seem to be no more lethal, but more contagious, possibly so contagious they may be able to spread in a population that is fully vaccinated and which is practicing social distancing. People who are vaccinated are unlikely to get sick so vaccination is overwhelmingly the most relevant public health intervention at this point in places where it's already endemic.