Evaluation of CSF-CXCL13 as a marker of disease severity in neuroinfectious diseases other than neuroborreliosis. Ninety-four complicated ((meningo-) encephalitis, myelitis, abscess) and 115 uncomplicated disease courses (meningitis, cranial nerve palsies, polyradiculitis) of neuroinfectious diseases were compared using the Mann–Whitney U test regarding CSF-CXCL13 (p < 0.001). p-values <0.05 were considered statistically significant. The values are represented as boxplots with interquartile ranges (bars), whiskers (dotted lines), medians (horizontal lines), and outliers (open circles).