Can vaccines cause seizures?
Vaccines can cause fever, and fever can cause seizures. These types of fever- related seizures are known as “febrile seizures” and occur in a very small number of children-often children whose parents or siblings have had febrile seizures. Fever from any cause can trigger febrile seizures in 3% of healthy children, so the number of children who would experience febrile seizures following vaccination would be very low. Febrile seizures do not cause brain damage.