Levels of risk
Row colours use California's four levels of risk. California use positivity rate and new daily cases per 100k. Unfortunately PHE don't publish the number of tests at Local Authority Level so we can't calculate a positivity rate. Instead we have to use daily cases per 100k. As this figure is quite variable daily we don't use the raw figures but instead use the 7-day-rolling-average.
Notes
Daily cases shows a smoothed 7-day rolling average (+/3 days of the day in question) of confirmed cases by specimen date. The smoothing hides some of the "noise" in the daily data and smooths out the weekend effect. The big figure we show is this smoothed value as of 5 days ago (in the data). We ignore the most recent days because the data is still coming in and the current value under-estimates the "final" figures for those dates.
As of 4th March 2021, English Local Authority population estimates now use figures taken from the National Immunisation Management Service (NIMS) as these are preferred to 2019 ONS estimates.
Credits
© 2020-21 Open Innovations. Cases data comes from Public Health England, death data comes from ONS, and restrictions come from the House of Commons Library. Code released under an MIT license. Source on Github.
