New cases in the U.S. went down 13% last week -- the biggest decline since the pandemic began. (Previous weeks' declines were 8%, 2%, and 2%, respectively.) The vast majority of states showed declines; the only states with statistically-meaningful increases were Arkansas, Louisiana, North Carolina, Nevada, South Carolina, South Dakota, and Texas. The states with the greatest number of new cases per 100K pop. last week were (in descending order) District of Columbia, Rhode Island, Delaware, Illinois, Massachusetts, and Nebraska -- but most of those showed significantly fewer cases than the week before.