Select Week Ending Date
Map Scale Controls
Use these sliders to control the size of the map blobs and the number of cases within a blob that will display as maximum 'heat'.
Changing settings often helps when you zoom and cause the map blobs cover a different sized area. You're likely to want smaller circles and a higher max as you zoom out.
Source: UK Government Lower Super Output Area Statistics
Note that since the UK Gov source data sets areas with only 1-2 cases to NULL, an area will only display as heat if it had >2 cases within a week.
To distribute cases, the map takes each individual recorded case and randomly assigns it an exact location within its reported area. Older versions of this app also showed data at LSOA level, which has been discontinued by the UK government.