The review showed that higher rates of aseptic meningitis and parotitis have been reported for the Urabe, leningrad-zagreb and Leningrad-3 strain vaccines compared to the Jeryl-Lynn strain vaccine.

Parotitis and aseptic meningitis have been described as complications of mumps vaccination with Urabe, Leningrad–Zagreb and Leningrad-3 strains of the vaccine but not with the Jeryl–Lynn strain1.