It’s interesting to note that in the end, there was no one else coming: we were it. A large amount of disease containment and control was just fronted by the United States. As the US declines, it’s not that a new leader will come in. It’s not that the Chinese century will have their massive industrial engine put to the tasks that America put hers to. It’s just that things won’t get done.
Sobering, really, that despite all the ascendance of new powers (who do not yet share the norms) and the noble aims of the old (who are too weak), one year after the US left no one has filled the gap.
Those initiatives inevitably cost far less than the economic impact of outbreaks (the US is currently diverting international travelers), but the best deal maker in the history of the universe says they’re a “bad deal”, so the rest of the planet gets to suffer.