It's both sensitivity and specificity that determine false positive rate. Do you have a link to the prison study? I'd like to see what they did to confirm the positive test results.
I have not seen the individual study itself, just news reports. I don't have their exact test methodology, but I can't conceive of any scenario where a 70% sensitive test would result in 96% false positives, so there has to be another answer... namely... there are a large number of asymptomatic positives.
It's both sensitivity and specificity that determine false positive rate. Do you have a link to the prison study? I'd like to see what they did to confirm the positive test results.
I have not seen the individual study itself, just news reports. I don't have their exact test methodology, but I can't conceive of any scenario where a 70% sensitive test would result in 96% false positives, so there has to be another answer... namely... there are a large number of asymptomatic positives.