This article is from the Childhood Vaccinations FAQ, by Lynn Gazis-Sax lynng@alsirat.com with numerous contributions by others.
"Rarely, side effects of mumps vaccination have been reported,
including encephalitis, seizures, nerve deafness, parotits, purpura,
rash, and prurittis." (Merck. Encephalitis and convulsions were also
on Merck's list of complications for mumps itself.) According to
ACIP's 1996 report on vaccine adverse reactions, "Aseptic meningitis
has been epidemiologically associated with receipt of the vaccine
containing the Urabe strain of mumps virus, but not with the vaccine
containing the Jeryl Lynn strain, the latter of which is used in
vaccine distributed in the United States." [MMWR 45(No. RR-12), 1996]
 
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