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Choose collection locationImmunology / Serology · Individual laboratory test
Toxoplasma IgG indicates that the immune system has encountered the parasite. Timing can be especially important when pregnancy is involved.
Clinical authorDr Nirupama SabhapathySpecialist Clinical Pathology
Understanding the test
Also called Toxoplasma Immunity (IgG)
This measurement may support assessment of past toxoplasma exposure when timing is clinically important, including pregnancy or immune suppression.
IgG can persist for years after exposure to Toxoplasma.
When timing matters, a specialist may use additional tests and previous specimens.
Before your sample
No fasting is needed. Mention pregnancy, its stage if relevant, possible recent exposure, immune suppression and any previous toxoplasma testing.
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
Detectable IgG can persist. Dating an infection may require earlier results, other antibody tests and specialist interpretation.
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 Toxoplasma Antibody, IgG Qualitative in your report. Use the sample type and collection time when comparing it with an earlier report.
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If pregnancy or immune suppression is relevant, bring previous toxoplasma results and possible exposure dates to the clinician.
Patient questions
No. Previous results and additional specialist testing may be needed to establish timing. Discuss a new concern promptly with your maternity clinician.
A reactive IgG means you have had a Toxoplasma infection at some point. It cannot tell whether that happened before or during this pregnancy. Bring any earlier results and tell your maternity clinician how far along you are. They may request additional antibody or specialist testing to clarify the timing.
IgG shows that you have met the parasite at some point and carry immune memory, but it cannot date the infection. IgM is used to look for a recent infection, yet it can give misleading positives and can stay detectable long after the illness has passed. That is why recent infection is judged from IgG, IgM and avidity testing together, with specialist interpretation.
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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.