1) Chile, Kuwait, and Singapore have similar rates of testing to the US [1]
2) Current studies show roughly somewhere between 10-20% of hospitalized patients ending up with heart damage, increasing their future risks of heart attacks and strokes.[2][3] Up to 36% of hospitalized patients are displaying neurological symptoms, with possible damage.[4] Up to 60% are ending up with ARDS which may be permanent.[5]
Extracting that with current numbers, assuming we had a 50% infection rate, 15% hospitalization rate [6][7], and a 1% death rate, we'd have ~1.5 million dead, ~22.5 million hospitalized, ~3.375 million with heart damage, ~8 million with neurological issues, ~13.5 million with ARDS.
Obviously many of these would overlap, but it sounds pretty devastating to me.
[1]: https://ourworldindata.org/coronavirus-testing#the-scale-of-...
[2]: https://jamanetwork.com/journals/jamacardiology/fullarticle/...
[3]: https://www.thelancet.com/journals/lancet/article/PIIS0140-6...
[4]: https://jamanetwork.com/journals/jamaneurology/fullarticle/2...
[5]: https://www.thelancet.com/journals/lanres/article/PIIS2213-2...
[6]: https://www.cdc.gov/coronavirus/2019-ncov/covid-data/covidvi...
[7]: https://gisanddata.maps.arcgis.com/apps/opsdashboard/index.h...