In this issue of Neurology® Neuroimmunology & Neuroinflammation, Salzberg et al report on the results of a small prospective study of the application of nextgeneration sequencing (NGS) of RNA and DNA extracted from brain biopsy tissue specimens obtained from 10 patients with suspected neuroinfectious disease processes. In 3 patients, the NGS results, which included JC virus, Epstein-Barr virus,...