Coronavirus cases spike in Texas and Arizona

At least in Texas, however, the spike in recorded cases does seem to reflect an actual increase in new infections — not just better testing.

Testing in Texas increased by 36% over the past week, while the number of confirmed infections rose by 51%.

Texas also saw an increase in the percentage of all coronavirus tests that came back positive. In a state where testing is improving and the underlying outbreak isn’t getting worse, you’d expect the share of positive tests to go down.