First and foremost, STOCKPILES!!! Lots and lots of "wasteful" government stockpiles of medical equipment. This is not the "big one" of pandemics, so whatever we would have needed for this one times ten or one hundred. Times one thousand would be silly, but you get the point.
Second, more integration with the world community. We used to have a US CDC office literally in the Chinese CDC. American epidemiologists used to travel with the Chinese epidemiologists. We do not know where the next pandemic will come from, so we should have similar offices in Africa, Central Asia, Southern Asia, and of course China.
Third, enough infrastructure to make all types of vaccines and all types of medicines. This is basically an extension of the first point, stockpiles. It looks wasteful, until it is not wasteful. We can use it to make vaccines and other low cost medicines, but will lose money on it... Until it saves the USA. Remember we also lose money on the military.
And fourth, planning... This is real. Evolution is real. We need to plan for it.