What is the unit of measurement for the markers on the Vibrant's Tickborne test?

The test results of antibody levels to the individual antigens are calculated by comparing the average intensity of the individual antibody to that of a reference population and cut-off chosen for each protein. In this way, immunoglobulins are measured and reported in semi-quantitative index values (units). PCR results are measured in CFU/mL or copies/mL.