A new study finds highly malignant mumps infections in those successfully vaccinated against the virus...
A provocative new study titled, "Epidemic of complicated mumps in previously vaccinated young adults in the South-West of France,"
reveals that the MMR vaccine, despite generating high rates of
presumably protective IgG antibodies against mumps, does not always
translate into real-world immunity against infection as we have
repeatedly been told. To the contrary, the study details cases where,
despite finding the presence of high levels of antibodies against the
mumps virus, patients contracted a malignant form of mumps that only
rarely follows from natural, community acquired infection.