I know that the California studies used the same test kit. It had 2 false positives out of 371 samples of pre-covid19 cases, and has a 10-20% false negative rat

I know that the California studies used the same test kit. It had 2 false positives out of 371 samples of pre-covid19 cases, and has a 10-20% false negative rate. Because the case numbers are so small, the false positives can skew things quite a bit. I took the midpoints of their 95% confidence intervals in the spreadsheet. I don't know what tests the other studies used.