From the CDC:
“Most children who have febrile seizures recover quickly and have no lasting effects. However, febrile seizures often result in a visit to an emergency room and can be very frightening for parents and caregivers.”
“Two studies have shown that children who have febrile seizures after receiving an MMR vaccine are no more likely to have epilepsy or learning or developmental problems than children who have febrile seizures that are not associated with a vaccine. Experts believe it is likely that this finding for MMR vaccine applies to MMRV vaccine as well.”
Kids get fevers, high fevers sometimes are associated with seizures, and they are almost never associated with long term consequences. You think that they might be associated with the vaccine, but the child just gets sick about the time of the vaccine. By contrast, influenza can cause high fever and death in vulnerable populations, including unvaccinated children. Get your kids vaccinated!