As previously observed in other NSAS (28, 80, 81), in our paediatric literature cohort a history of preceding viral encephalitis was relatively frequent (i.e., D2R, GABAAR) (28, 36), and overall there was less marked gender association than in adults (i.e., no female preponderance in AMPAR encephalitis). This evidence concerns the gene DRD2 and viral encephalitis.