1/7 This tweet thread describes the authoritative USA county-level *daily count* COVID-19 data that is hosted on my server and which can be used by anyone for any non-commercial purpose. #COVID19 #COVID #CovidData
2/7 #JohnsHopkinsUniversity is widely regarded as one of the primary sources for authoritative COVID-19 data. Hopkins curates this data from various sources and hosts it on GitHub at
github.com/CSSEGISandData…
3/7 The #JohnsHopkins “timeseries” data is a *cumulative count* of cases and deaths. My code automatically runs each night and converts those cumulative counts into *daily counts*. I am hosting this daily count data in separate csv files per month.
4/7 These *daily count* files include latitude longitude data for county centroids. Also included are the county FIPS codes to make it easier to merge this daily count data with other data sets.
5/7 Example download links
Cases
mappingsupport.com/p2/disaster/co…
Deaths
mappingsupport.com/p2/disaster/co…
For other months, change the 2-digit month number. Data starts in March (cases_2020_03.csv).
6/7 #JohnsHopkins updates their *cumulative count* timeseries data as better information becomes available. For that reason, my code remakes all the *daily count* files each night. Thus, this daily count data will always be in sync with the Hopkins cumulative counts.
7/7 So far I know of two research teams using this daily count data. One team has built a model to predict future COVID hotspots. The other team is looking at calls to crisis lines. If you use this COVID-19 in a project, please credit Joseph Elfelt, MappingSupport.com
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