FIG. 2.

ELISA antibody (Ab) reactivity against U94/REP in sera from different patient populations. (A) Frequency of positivity, expressed as percentage of positive samples with respect to the total number of samples tested. (B) Mean titer of positive samples, expressed as the geometric mean of the highest serum dilution at which samples resulted positive and representing the mean for duplicate samples in at least three different assays. Mean values were 1:130 for healthy donors, 1:515 for MS patients, 1:160 for patients with other neurological disorders (OND), and 1:175 for patients with CIN. Bars indicate standard errors.