Depending on the country and an observer’s cynicism, I think the majority of nations understood early on that it was already far too late to significantly dampe

Depending on the country and an observer’s cynicism, I think the majority of nations understood early on that it was already far too late to significantly dampen the impact of such a deadly and infectious virus. The United States government was thoroughly informed of this risk via Operation Dark Winter but never geared up for it - perhaps this is best managed by states once the infection crosses the border, but preparations on those levels weren’t completed either.