Can Previously Vaccinated Adults Get Complicated Mumps?

December 3, 2014 This study, retrospectively studied 7 cases of complicated mumps during one year at a hospital in France.  There were 5 cases of meningitis, one orchitis and one of unilateral hearing impairment.  Four of these young adults were previously vaccinated with 2 doses of MMR.  Unusual viral strains with increased neurovirulence, insufficient population…

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