Google Maps is used by one billion people and on 23 September 2020, they launched a new feature. A layer showing a seven day average of new Corona cases per 100.0000 inhabitants in your area.
Watch the video to see how
The data comes from 3 sources: John Hopkins University, Wikipedia and The New York Times which in turn receive their data from the World Health Organisation and government health organisations.
The scope is global as Google Maps works in 220 countries. Considering that China shows 0 cases, it is unclear to me whether Chinese sources release their data, but they should as they are part of the World Health Organisation.
A little arrow shows if the cases are going up or down and colour-coding gives a visual hint of how things are going. If you want to dig into the data Google also provides this overview of cases worldwide and by country with links to the latest news items on corona.
This feature is available on Android and iOS smartphones via the app but not on computers.
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