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Choose collection locationImmunology / Serology · Individual laboratory test
Measles IgG can document an antibody response after vaccination or infection. This differs from testing a person with a new fever and rash.
Clinical authorDr Nirupama SabhapathySpecialist Clinical Pathology
Understanding the test
Also called Measles Immunity (IgG)
This qualitative test may help document a previous measles immune response when records are unclear. Suspected new infection follows a separate clinical pathway.
Measles IgG can provide evidence of immunity when vaccination or infection history is unclear.
A clinician can compare the result with documented vaccine doses and the reason testing was requested.
Before your sample
No fast is necessary. Bring MMR vaccine dates and mention recent blood products or immunoglobulin. Call ahead if you have a new fever or rash.
A clinician takes a small sample of blood from a vein. The laboratory uses serum, the liquid separated from the blood after it clots.
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24 hoursLaboratory turnaround
A reactive IgG result is usually evidence of previous vaccination or infection. It does not date exposure or establish the cause of a new rash.
From sample to follow-up

Choose your location, add the test to your care bag and select a time. If you are booking for someone else, assign the test to them in checkout.
Choose collection locationLook for Measles (Rubeola) Antibody, IgG Qualitative in your report. Use the sample type and collection time when comparing it with an earlier report.
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Take your vaccination record to the review. If you have new symptoms, call the clinician before attending in person.
Patient questions
Contact a clinician promptly and call ahead before attending a facility. An immunity blood test is not the appropriate stand-alone assessment of a new illness.
Yes. Antibody received from a blood transfusion, immunoglobulin or another blood product in recent months can make the test reactive without reflecting your own immunity. The same happens in young infants, who carry their mother's antibody for the first months of life. Tell your doctor about any such treatment so the result is read correctly.
For most people, written records of two valid measles-containing vaccine doses carry more weight than a later negative IgG. The first dose should have been given on or after the first birthday and the doses at least 28 days apart. Another dose solely for this result is generally unnecessary. If your record is incomplete or your immune system has changed, ask your clinician to review it.
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Written by Dr Nirupama Sabhapathy, Specialist Clinical Pathology. Medically reviewed by Dr Joyce Jose, Specialist Clinical Pathology, on .
Catalogue information and AED price checked on 2 November 2026. Clinical suitability, preparation, collection arrangements and turnaround are confirmed for your selected test.