His favorable prognosis (no sequelae) is in accord with the study of Zhang et al.[3] In conclusion, in patients with encephalitis accompanied by hyponatremia, elevated IL-6 or urinary β2MG, and exacerbations such as sudden somnolence, delirium, confusion, and seizures, the possibility of secondary MERS, in addition to the progression of encephalitis, should be considered. This evidence concerns the gene IL6 and viral encephalitis.