On that topic of "is the USA the worst-hit country" ... By the measure of officially recorded deaths per million residents (which removes all the uncertainties and inconsistencies of testing), and based on
Coronavirus Update (Live): 23,522,991 Cases and 811,048 Deaths from COVID-19 Virus Pandemic - Worldometer ... Not yet.
Having said that ... Sort that table by deaths per million residents. The USA is 10th, currently at 545 deaths per million residents, but this has been going up by 3 to 4 per day. (1000 deaths per day in the USA = 3 per million residents each and every day).
Next question "what are the trends" ...
Chile is 9th, 567 deaths per million, this is also going up at roughly the same rate, so the USA may not catch them.
Sweden is 8th, 575 deaths per million, but is almost done with it. USA is on track to overtake this in 7 to 10 days.
Italy is 7th, 586 deaths per million, and is also almost done with it. USA is on track to overtake in 10 to 14 days.
UK is 6th, 610 deaths per million, and is recording few deaths. USA at current rates overtakes in 16 to 22 days.
Spain is 5th, 617 deaths per million. What happens here depends on how well they control their second wave. If they manage that, USA at current rates overtakes in 18 to 24 days.
Peru is in bad shape and getting worse.
Belgium's numbers are screwed up, it's known that they overrepresented the number of covid-19 deaths in long-term-care facilities, and it seems that now there's no way to fix it.
And that's it for big countries ahead of the USA on the list.
I think this is going to eventually end up: San Marino (which is a city-state in the middle of a hard-hit region of Italy), Belgium (known to have screwed up numbers), Peru, Chile, USA (which will have overtaken all of the european countries that were hard-hit early on with the exceptions listed above).
And that's sad.