From the article:
Some state health departments are doing what they can. Michigan, notably, has counted 3,762 cases at time of writing, as compared to the CDC’s 1,645, and identified salad greens as a possible—not confirmed!—culprit. But as Katrine Wallace points out at Stat News, most state health departments are not really equipped to collect and compare case information across multiple states.



My carpel tunnel acted up when I read this.