RT @trishgreenhalgh: Tweeps, your homework for today is to study this infographic. No tweeting about #testing till you’ve understood it. Via @pash22 https://t.co/NtZIxAtTSD

from Twitter https://twitter.com/danbrewer


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RT @jburnmurdoch: Most useful thread I’ve read on the dynamics of Covid transmission. By an expert, and packed full of links to evidence. Indoor spaces and or prolonged face-to-face contact account for large majority of Covid transmission. Walking past someone in street/park much lower risk. https://t.co/fnMrDjAxfq