Erm, the US and UK ? Their handling has been dire.
We all remember Boris Johnson going on TV and when asked about the images coming out of Italy said "Well, its nothing to worry about, you'll have to just take it on the chin".
Every man and his dog could see the slow car-crash coming. First China, then Asia, then Western Europe... the statistics and TV coverage was all there for everyone to see. But the UK government was in constant and total denial until the hospitals started clogging up.
And even when the UK government finally admitted it, their handling was truly, truly dire. Constant failure to act, constant acting too late, constant u-turns, throwing 40-billion down the pan on dodgy contracts.