June 28, 2010 — Infants aged 12 to 23 months have about double the risk of developing a febrile seizure for 7 to 10 days after being vaccinated with the measles-mumps-rubella-varicella (MMRV) combination vaccine compared with those receiving separate MMR and varicella vaccines, according to a new study.
Despite this increase, physicians and parents should understand that the overall risk for febrile seizures from either the MMR or MMRV vaccine is low, stressed lead study author Nicola P. Klein, MD, PhD, codirector of the Kaiser Permanente Vaccine Study Center in Oakland, California.
MMRV Doubles Risk for Febrile Seizures 7 to 10 Days After Vaccination.
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