A study from Korea showing why indoor dining is unsafe and why airborne transmission matters. Case B infected case A from 6.5m (~21 feet!) away in *just five minutes*, and case C from 4.8m (15 feet!). Footage shows no interaction—and only those in line of air flow got infected. pic.twitter.com/Yw3Gb8INWP
— zeynep tufekci (@zeynep) December 3, 2020
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