Is there any data on (if/) how much confidence a 97-98% reading would give one of not having Covid?
My understanding is that in general even asymptomatic carriers will be clearly diagnosable in chest CTs, wouldn't that translate into lower oxygen levels?
I understand someone would've noticed if it was 100% predictive or even close, but does it tell you something?
Trying to decide about going to outdoor minyan when somebody I was exposed to only very briefly (from a distance, ventilated, both with masks) tested positive.