Looking at the bigger picture I think the world will suffer from those countries that handle Covid the worst because
the virus will not disppear in those countries and it has time to mutate there until it reaches a state that can evade the vaccines and then re-infect the other countries.
Several epidemiologist are trying to warn the developed nations that the current battle for covid vaccines provisioning is doing the world a disservice since it allows the virus to mutate in parts of the world that can't compete economically for vaccine shots (Manaus, South Africa, etc.)
But Nash equilibrium is still more powerful than everything else ...
Since we don't have enough doses or dosing capacity yet to make anywhere reach herd immunity, not even tiny Israel (although hopefully they are getting close), it's not like shipping everything to South Africa would change anything. Also, given the refrigeration requirements of the early vaccines, shipping it to lower income countries would probably just increase the chance of some of the doses spoiling.
Really, it's in virtually every country, so there's not a place on Earth where it's not mutating.
Same thing: those animal hosts are everywhere. There is no particular reason to expect that an animal host in Isreal won't be the source of the next mutation (Israel is currently number 1 in per-capita vaccination)
Animals carry lots of nasty diseases, Ebola, rabies, SARS, MERS, etc., yet these are under control in large parts of the world, thanks to basic hygiene. If we were willing to follow e.g. New Zealand's example, committing to actually applying what we have learned about containing local outbreaks, maybe we couldn't eradicate SARS-CoV-2 and its variants, but we could do so much better at controlling it, allowing us to largely go back to normality.
Yeah, I haven't seen a lot of discussion of this, but cats, hamsters, guinea pigs, and mink is a lot of other mammal species already proven to be able to pass it on. I think we will never live in a covid-19 free world again, it will be like measles; always in circulation, but hopefully we get effective vaccines against it.