if you had serious flu symptoms and tested negative for flu A and B, I think they automatically count you as positive covid....no further testing needed...
if you had serious flu symptoms and tested negative for flu A and B, I“
They need to test people who have no symptoms, to identify and quarantine the asymptomatic carriers
You could have rsv virus, or human meta pneumo virus, or many others that a multi panel viral pcr test might pick up.