Daniel M. Parker
, Tim Bruckner, Verónica M. Vieira, Catalina Medina, Vladimir N. Minin, Philip L. Felgner, Alissa Dratch, Matthew Zahn, Scott M. Bartell, and Bernadette Boden-Albala
Figure 3. Severe acute respiratory syndrome coronavirus 2 test intensity, Orange County, California, USA, July–August 2020. A) Test intensity by month, calculated as the number of tests per 100,000 persons per week at the ZIP code level. B) Results from tests of statistical clustering (based on LISA statistics ). LISA, local indicators of spatial autocorrelation.