A controlled trial for evaluating two live attenuated mumps-measles vaccines (Urabe Am 9-Schwarz and Jeryl Lynn-Moraten) in young children.

A prospective, randomised clinical trial was conducted to evaluate the efficacy of two live attenuated mumps-measles vaccines, the Urabe Am 9-Schwarz and the Jeryl Lynn-Moraten vaccine, in 400 young children aged 9 months-4.5 years (median 13.4 months). Antibody responses to both vaccine components were measured by the enzyme-linked immunosorbent assay (ELISA); 96.9% of the seronegative children who received the Urabe Am 9-Schwarz vaccine showed satisfactory mumps antibody responses compared to 90% of the Jeryl Lynn-Moraten vaccine recipients (P less than .01). Similar proportions of both groups, 98.5% and 96.8%, respectively, developed measles virus specific antibodies. Both vaccines were equally well tolerated and clinically acceptable.

RCT Entities:   Population Interventions Outcomes