Figure 7 of the paper appears to show a large spike in cases in the "high inflow" counties, at 18-23 days and 24+ days post-Sturgis start (Aug 3). However, a q

Figure 7 of the paper appears to show a large spike in cases in the "high inflow" counties, at 18-23 days and 24+ days post-Sturgis start (Aug 3). However, a quick review of the maps in Figure 1 identifies those counties as Clark, NV (Las Vegas), Maricopa, AZ (Phoenix) and Jefferson/Arapahoe/Weld, CO (Denver Metro). None of those counties' own data reporting seems to match up with this supposed spike in cases that the paper suggests, starting around Aug 21. https://media.southernnevadahealthdistrict.org/download/COVID-19/updates/September/20200908-COVID-19-Trends-Clark-County-PUBLIC.pdf https://media.southernnevadahealthdistrict.org/download/COVI... https://phdata.maricopa.gov/Dashboard/e10a16d8-921f-4aac-b921-26d95e638a45?e=false&vo=viewonly https://phdata.maricopa.gov/Dashboard/e10a16d8-921f-4aac-b92... https://www.jeffco.us/4007/COVID-19-Case-Summary https://www.jeffco.us/4007/COVID-19-Case-Summary Clark and Maricopa are clearly heading downwards. The Denver Metro graphs are a little more vague, you could maybe suggest there has been an uptick in cases but you'd be hard-pressed to definitively say there is a "spike" that contrasts with the long-term trend. I'm having some difficulty squaring the paper's case data with the county governments' own counts.