[hamolton]

I agree with you that most susceptible populations have probably gotten it by now, especially among people living on reservations. It's hard to imagine that the real numbers would have reached 70%, though, considering the total COVID deaths per 100k population in the Dakotas is 184 & 181 compared to New Jersey's 229, although I guess NJ does have a larger old population. I always imagine as life on the gigantic old homesteading plots to be isolated, but I have no idea.

[mike_n]

it does seem very plausible that undetected cases are several times higher than confirmed/symptomatic cases. and/or, perhaps when things start to spike locally people begin to take it seriously and change their behavior a bit -- distancing/masks were not very common in the Dakotas before the post-Sturgis wave.