Comment Re: It isn't unclear at all (Score 1) 161
Actually, it looks like 1.8 % is pretty good, they found 1.7 % here :
"Persistent False Positive Covid-19 Rapid Antigen Tests" - https://www.nejm.org/doi/full/...
And even lower, around 1 % when you don't count the repeats of false positives from individuals prone to have them (mostly occurs with persons with autoimmune disorders and some women too).
Thought it does look like it's possible to get up to around 5 % false positives if the tested population has a low enough incidence of COVID :
"The impact of false positive COVID-19 results in an area of low prevalence" - https://pmc.ncbi.nlm.nih.gov/a...