CovidCounties is an interactive real time tracker of the COVID19 pandemic at the level of US counties

Management of the COVID-19 pandemic has proven to be a significant
challenge to policy makers. This is in large part due to uneven reporting
and the absence of open-access visualization tools to present and analyze
local trends as well as infer healthcare needs. Here we
report the development of CovidCounties.org, an interactive web
application that depicts daily disease trends at the
level of US counties using time series plots and maps. This application is
accompanied by a manually curated dataset that catalogs all major public
policy actions made at the state-level, as well as technical validation of
the primary data. Finally, the underlying code
for the site is also provided as open source, enabling others to validate
and learn from this work.