There's clearly something going on with testing & the age & health of those being tested.
After three weeks of steep increases in the # of cases in AZ, the 7 day average new hospitalization rate is at 8.9 per million, which is less than MD (13.4 per million) and five other states right now, and a whole world away from the average hospitalization rates in the hardest hit states at the peak (NY was over 100 new hospitalizations per day per 1 million at its peak) . The 7 day average new death rate (2.9) in AZ is still about half that of DC (5.1). Over the last 30 days, the cumulative mortality rate in AZ has declined from 5.01% to 2.95%.
I live in another state that has increasing cases, with the same pattern. Increase in the number of cases over the past month has been accompanied by only a slight increase in hospitalizations and a decrease in the number of new deaths and a steady decrease in the cumulative mortality rate.
This is all consistent with younger, healthier people being diagnosed. I also wonder about the comments from nurses on other threads who say that a significant proportion (one nurse said 43%) of the patients in the coronavirus wards are patients who are in for other reasons who have tested positive, but have no coronavirus symptoms.
http://www.91-divoc.com/pages/covid-visualization/?fbclid=IwAR31GHXuyL1QxPp5xKusUXXQg2e0EEpwm9_oqEadVpooHw8CusCDSmUeBPg