Rather ironic - if all those positive coronavirus tests missed since 24 Sep and *reported* today had actually *occured* today we'd be tracking ABOVE that much criticised 7-day doubling time projection that Patrick Vallance showed in his 21 Sep presser slide: 
Obviously that's not what's happening.
Here's the current picture looking at cases by specimin date, not reported date - and comparing it to a 7 day doubling trend from 15 September:
Here's the current picture looking at cases by specimin date, not reported date - and comparing it to a 7 day doubling trend from 15 September:
Though, as many people are pointing out, the reliability of *any* of the data on cases from the government seems questionable now given testing/data processing problems - probably best to pay more attention to survey data from @ONS and @imperialcollege
This from @UKCovid19Stats essentially shows my two charts above together so you get a sense of the how different is the picture from using *reported* date & using *specimen* date.
https://twitter.com/UKCovid19Stats/status/1312864840965382144?s=20
Use specimen if anything, but be wary even of that given these major new data processing problems - which come on top of the well-known test processing issues
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