Febrile seizures and measles-mumps-rubella-varicella (MMRV) vaccine: what do primary care physicians think?

PURPOSE: Measles-mumps-rubella-varicella (MMRV) vaccine is associated with increased febrile seizure risk compared with measles-mumps-rubella and varicella vaccine given separately (MMR+V) in children 12-15-month old. We assessed knowledge regarding MMRV and febrile seizures, intended practices, and factors influencing the decision to recommend MMRV.

METHODS: National survey administered 10/2008-1/2009 of US pediatricians (Peds) and family physicians (FP).

RESULTS: Response rate was 73% (620/849). Twenty-nine percent of Peds and 74% of FP (p<0.001) were unaware of increased febrile seizure risk after MMRV. After reading an informational statement, 20% of Peds and 7% of FP (p<0.001) would recommend MMRV to a healthy 12-15-month-old child. The factor most frequently reported as "very important" in the decision to recommend MMRV or MMR+V was ACIP/AAFP/AAP recommendations (pediatricians, 77%, family physicians, 73%, p=0.08).

CONCLUSIONS: After receiving data regarding febrile seizure risk after MMRV, few physicians report they would recommend MMRV to a healthy 12-15-month-old child.