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Central nervous system (CNS) infections are one of the leading causes of acquired epilepsy [1]. Patients with encephalitis have a risk of developing seizures at the acute stage, as well as later developing unprovoked seizures [2]. It is well recognized that the risk of developing unprovoked seizures in these patients is 7 to 16 times higher compared to the general population [3,4], especially in those with Herpes simplex virus and Japanese encephalitis (JE), and the odds ratio of subsequent epilepsy was reported to be 8.06 for JE [5].