> we don't rationally share the vaccine, By the end of 2021, do you really think that'll still be a problem? Vaccine shortage is a problem right now. But the

> we don't rationally share the vaccine, By the end of 2021, do you really think that'll still be a problem? Vaccine shortage is a problem right now. But the end of 2021 we'll have vaccines by the billions. As for the next mutation, we'll likely have the productions capacity. The question becomes if a vaccine can be developed fast?