Note: This thread is related to #Coronavirus #COVID19

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John Burn-Murdoch+ Your Authors @jburnmurdoch Stories, stats & scatterplots for @FinancialTimes | Daily updates of the coronavirus trajectory tracker | [email protected] | #dataviz May. 20, 2020 1 min read + Your Authors

I was on a call with a bunch of data journalists last month where we discussed our ...surprise... that Johns Hopkins used Worldometers as a source for its Covid data

It’s kinda mad that so many kept using their numbers given the complete opacity 

Early on, we were using Worldometers for some of our sourcing, but stopped in early April after @MaxCRoser drew attention to their unreliability and complete lack of transparency

Whole books could be written on the Wild West that is Covid data
• Weeks-long backlogs of deaths or cases being casually attributed to a single day
• Countries’ definitions changing abruptly, leading to people rising from the dead
• Fat-finger mistakes quadrupling death tolls

Updating the trajectory charts is a great demo of dataviz as fact-checking tool

"Data done, how does it look when we plot it?"

"Ah, 3 countries resurrected people, one went from averaging 3 deaths to 100, one vanished"

Far easier to spot weirdness in a chart than a spreadsheet

You can follow @jburnmurdoch.


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