1) Not affected as much by how many tests are conducted 2) Directly reflects strain on the medical system
3) Directly reflects number of severe cases that could result in death
* More precisely, how fast it was spreading 7-10 days ago, since there's a lag between infection & hospitalization.
A 33% increase from Sunday -> Monday, following a 23% increase from Saturday -> Sunday.
These are worrying numbers.
(Although slower than the rate of increase in positive tests.)