This paper described cases of nonfebrile seizures associated with the MMR vaccines. Vaccine-strain viruses were identified. - GreenMedInfo Summary
Nonfebrile seizures after mumps, measles, rubella, and varicella-zoster virus combination vaccination with detection of measles virus RNA in serum, throat, and urine.
Clin Vaccine Immunol. 2013 Jul ;20(7):1094-6. Epub 2013 May 1. PMID: 23637042
Isabella Eckerle
We report the case of a child presenting with nonfebrile seizures 6 and 13 days after the first vaccination with a measles, mumps, rubella, and varicella (MMRV) combination vaccine. Measles virus RNA was detected in the patient's serum, throat, and urine. Genotyping revealed the Schwarz vaccine virus strain.