Fig. 8

Repeatability analysis of the blocking ELISA. Intra assay repeatability was assessed using four positive and two negative sera tested on different occasions and by different operators with the newly developed bELISA. Values are the mean PI (%) of three replicate wells. The small figure shows the total average and standard deviation (SD) of four positive and negative sera across the different experiments. The dotted lines represent the upper and lower cutoff values