Certainly this one isn't the worst, but in a lot of cases, , getting too contagious or too deadly actually reduces things.Another virus will come. No doubt. And worse. This is only a medium contagious and medium deadly one.
As for a global response - unfortunately globalists dont have much power anymore. USA and UK created the globalist world we were raised in, but now both are intent on destroying that.
Like, ebola was very deadly, but basically it killed you before you could actually infect others. And if things were actually more contagious than this (like a measles), then people are often smarter to fully quarantine the infected areas.
This has the sort of golden ratio where it's contagious enough that you need to lock things down, but not actually contagious enough that me going out to grab a Starbucks is really in danger of actually picking things up. And it's deadly enough obviously that you're filling up hospitals and morgues, but not deadly enough again that anyone who's not elderly or immuno-compromised is really worried about it.