The virus is going to be with us forever as not everyone is going to take the vaccine whether because they do not want to or simply because they do not have access to it and then the virus will mutate to the point another vaccine will be necessary beginning a game of cat and mouse of which there is no escape, so the best we can do is to take the precautions necessary so we do not get it and if we do we should avoid transmitting the virus to other people.
I don't think so. I believe like polio out break, it could be eliminated by vaccines and herd immunity. And just like sars, it mutated but still vaccines isolated the virus up to the point where it vanished. Here in the Philippines, polio outbreak was unstoppable on year 1990 up til 2010's and we finally got broke it up by vaccines given.
But viruses are different and can be classified in two different branches, those that do not mutate easily and those that do, the virus that causes polio is one that has a very low mutation rate so you can create a vaccine and still use it fifty years later, the virus that causes COVID mutates extremely fast, it is so fast that as far as I know that are 4 other strains already, so I think my prediction regarding the future that awaits us is more accurate.
I feel like we are starting going off-topic here, because it was about
positive effects of the pandemic, and too see new examples of such effects from various countries would be still very interesting.
How
dangerous COVID-19 can be for the economy, especially with new strains emerging, is also an interesting topic, and it deserves a separate thread(if there's none yet). I can't resist sharing a thought regarding what you said, though. Although fully vaccinated individuals can be infected with a new strain, they will recover more easily, like from a minor illness, and that won't affect the world economy in any way because people get sick all the time, and it's known how to deal with it.