So, The Big Mask study has been published, and I thought rather than expound on what the results DID show (everyone's doing that), I might point out a few things that they DIDN'T show 1/npic.twitter.com/zG4jtXQVVq
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I was stunned by the high proportion of positives in both groups. Denmark was not particularly hard hit in the first wave and getting around 2% positives in a month in both groups seemed a lot. Maybe a lot of lateral flow antibody test false positive noise in both groups.
Yes, because it is about the test characteristics not immunity prior to the study. Excluding people who tested +ve at the start is because they were using serology not PCR testing or symptoms to define an infection
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