The phrase "febrile seizures" refers to seizures that occur in children when they have a high fever. These seizures usually last only a few minutes and are generally harmless. Full definition
The combined measles - mumps - rubella - varicella (MMRV) vaccine shows a slightly increased risk of febrile seizures in children, compared with the previously separate vaccines for MMR and varicella (chickenpox)(MMR+V), according to an article in CMAJ (Canadian Medical Association Journal). (sciencedaily.com)
«Combined MMRV vaccine shows slight rise in febrile seizures in children, study shows.» (sciencedaily.com)
The latest study is the most thorough large - scale study to date of the risk of febrile seizures following inoculation with the DTaP - IPV - Hib vaccine, which protects against diphtheria, tetanus and pertussis (whooping cough), as well as polio and Haemophilus influenzae type b. (scientificamerican.com)