This is a useful thread Andrew. Is it possible that a person is not actually infectious until positive? As per @michaelmina_lab schema.
RT @andrewflood: #Covid19 antigen testing remains controversial because it both works but is late detecting an infection allowing it to spread if testing is used to not initially isolate. Typically positives only occur 1-2 days after initial symptoms as my experience below illustrates /1

🐦🔗: https://n.respublicae.eu/NChildersMEP/status/1606232211115606016