Monarch Disease Ontology term MONDO_0011461 (generalized epilepsy with febrile seizures plus, type 2) is any febrile seizures, familial in which the cause of the disease is a mutation in the SCN1A gene. Also known as: GEFS+, type 2, SCN1A febrile seizures, familial, febrile seizures, familial caused by mutation in SCN1A.