Tag Archives: 4-in-1 Vaccine Ups Child Seizure Risk

Measles-Mumps-Rubella-Chickenpox Vaccine Doubles Febrile Seizure Risk By Daniel J. DeNoon WebMD Health News Reviewed By Louise Chang, MD Feb. 26, 2008 — ProQuad, Merck’s 4-in-1 measles–mumps–rubella–chickenpox vaccine, doubles children’s seizure risk compared with two separate MMR and chickenpox shots. Even at twice the risk, 12- to 23-month-old children …

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