If anyone is still following covid stats, versus being out having reopening fun, I found a site with massive amounts of data, guaranteed to crunch yer brain. There is so much difference between countries, it will take people a while to sort it all out. There are about 75 graphs, and I've included one of them below. It is totally interactive on my laptop (but not on my tablet).
https://ourworldindata.org/grapher/doubling-time-of-covid-cases?country=ITA+NOR+ESP+SWE+GBR+USA
It has both good news and bad news. The good is that the rate of new infections has dropped "radically" in the hardest-hit European countries. Doubling times are now up in the 140-160 day range. The bad news is that it's still much lower in the U.S., more like 20 days. Even so, I cursored the curves at Mar 15, when cases were exploding exponentially, and you can see that back then it was taking just 2.57 days for cases to double in the U.S. So, we've come a long long way since then. The extreme lockdowns in Europe were much more effective than the half-baked lockdowns in the U.S.
All in all, this is a good sign in general, if you look back at other references, as per what epidemiologist Kucharski said. He said if you can simply 1/2 the infection rate, then after a month the new cases go down by about 64:1.
And now, for the I-told-you-so people, I also added Sweden and Norway to the graph, Sweden having done no official lockdown and Norway did. So today, the infection time for doubling in Norway is 8:1 times longer than in Sweden. Since Sweden's curve exactly matches the U.S. curve, it may be that it didn't even matter that the U.S. did do somewhat of a lockdown. We may have destroyed our economy for no good reason. Just a thought. Duh.