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Febrile Seizures After Childhood Vaccines Are Rare, Study Finds
National Public Radio

A seizure caused by a fever in a young child can be terrifying, and some parents worry that the occasional fever that can follow a vaccine may cause one. But febrile seizures after vaccines are rare, a study finds, affecting 3 children out of 10,000. And children almost always recover completely.

The study, published Monday in Pediatrics, found that only a few vaccines or vaccine combinations increase the risk of febrile seizures. The pneumococcal vaccine given alone increases the risk, and so does the flu vaccine if given at the same time as either the pneumococcal vaccine or DTaP (diphtheria, tetanus, pertussis) vaccine.