> It's almost like the existence of vaccines places evolutionary pressure on a mutating virus. This is true, however, in this case, the vaccines are losing eff

> It's almost like the existence of vaccines places evolutionary pressure on a mutating virus. This is true, however, in this case, the vaccines are losing effectiveness against the same strains over time. Which is unsurprising, actually, early reports from China on natural immunity showed that it doesn't last as long as usual. It was hoped that a vaccine would be more targeted but it seems effectiveness fades there also.