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Mumps IgG


This test measures the level of IgG antibodies to mumps in your blood which will tell you whether you are immune to mumps. A result above a certain level will mean that your result is positive and you are immune to mumps. If your antibodies are below this level then your results may be reported as equivocal (where immunity is not certain) or negative which means that you are not immune to mumps.

Mumps is a contagious viral infection which is spread through coughing and sneezing. It causes symptoms such as headaches and joint pain, as well as the characteristic swelling of the parotid salivary glands just below the ears. Some individuals will also experience swelling of the testicles and ovaries, and it can cause viral meningitis in a minority of cases.

Immunity to mumps can be acquired through vaccination or from having recovered from a previous infection. Immunity means that you will not catch mumps and neither can you spread mumps to another person. Health care workers may need to prove their mumps immunity to their employer.