It's hard to take that American Hospital Association slide seriously. Expecting 480,000 deaths in the U.S. doesn't seem within the realm of any kind of reasonable worst-case estimate. If it comes to that I hope they're preparing for it, but it boggles the mind to think they would publish such a statistic.
Even in China, where they horribly mismanaged the situation in the beginning and then locked down a whole province, the total number of deaths currently stands at 3194 (assuming that you believe the reported numbers). Most of those (3075 currently) have been in Hubei province (population about 58 million). China is now on the down-slope of the curve with relatively few new cases.
Europe seems to be the next hot spot. Most (but not all) countries in Europe are now seeing increases, so it seems like a good move to cut off air travel to Europe. I just hope it isn't too late to help.
*EDIT* Comparing the most recent few reports South Korea seems to have leveled off in the past few days and may be decreasing slightly, although it's kind of hard to tell and may not enough to tell if there's a statistically significant decrease.
WHO data is frequently updated here:
https://www.who.int/emergencies/dise...ation-reports/