Generalized Epilepsy with Febrile Seizures Plus, Type 8, also known as generalized epilepsy with febrile seizures plus 8, is related to febrile seizures and febrile seizures, familial, 11. An important gene associated with Generalized Epilepsy with Febrile Seizures Plus, Type 8 is GEFSP8 (Generalized Epilepsy With Febrile Seizures Plus, Type 8).