Fig. 2From: A longitudinal and geospatial analysis of COVID-19 tweets during the early outbreak period in the United StatesZ-scores for the Getis Ord Gi* statistic, indicating geospatial clustering of tweets about COVID-19 from (a) New York City, (b) Los Angeles County, (c) Cook County (i.e. Illinois), (d) Houston, and (e) Maricopa County (i.e. Phoenix)Back to article page