Toxoplasma gondii, IgG antibody

Also referred as

Anti-Toxoplasma IgG

TTG-IgG

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A Toxoplasma gondii, IgG antibody test is a blood test used to detect the presence of Immunoglobulin G (IgG) antibodies against the Toxoplasma gondii parasite. The test helps in the diagnosis of a previous (past) toxoplasma infection.

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Blood

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Understanding Toxoplasma gondii, IgG antibody

Toxoplasmosis is an infection caused by the parasite Toxoplasma gondii (T. gondii). It can be transmitted to humans primarily by ingestion of undercooked infected meat and maternally through transplacental transmission. A Toxoplasma gondii, IgG antibody test helps assess previous (past) toxoplasmosis infections, as IgG antibodies can persist in the body for extended periods. The presence of IgG antibodies tells the previous encounter with the parasite rather than an active infection.

Understanding an individual’s immune response to Toxoplasma gondii is crucial for various conditions in pregnant women, the presence of IgG antibodies signifies a previous exposure and potential immunity, reducing the risk of vertical transmission to the growing baby. Conversely, a Toxoplasma gondii, IgG antibody test in immunocompromised individuals, helps in monitoring latent infections that may become reactivated. Moreover, individuals exhibiting symptoms of toxoplasmosis, such as flu-like symptoms such as swollen lymph nodes, or muscle pain may undergo this test. In some cases, doctors may include a Toxoplasma gondii, IgG antibody test as a part of routine health screenings, especially for certain high-risk groups. A Toxoplasma gondii, IgG antibody test is also done as a part of the TORCH panel, a group of tests that screen for several infections that can potentially affect a growing baby during pregnancy.

No special preparation is required before undergoing a Toxoplasma gondii, IgG antibody test. However, it is important to inform your doctor about any medications, supplements, or medical conditions before the test as these factors may potentially influence the test results.

Lab test results may vary across different laboratories. Abnormal test results require an expert interpretation; therefore, never try to self-medicate at home based solely on these results, and always consult a doctor for a proper understanding of the test results. The insights from this test help the doctor tailor an appropriate treatment plan.

What does Toxoplasma gondii, IgG antibody measure?

A Toxoplasma gondii, IgG antibody test measures the presence of immunoglobulin G (IgG) antibodies specific to the Toxoplasma gondii parasite in the blood. These antibodies indicate a previous (past) exposure to the parasite. The presence of IgG antibodies indicates that you have had an infection, but it does not tell when. A high avidity in the IgG avidity test strongly suggests the infection happened more than 4 months ago. However, a low avidity result alone cannot be used to diagnose when the infection occurred, and further clinical evaluation is needed.

In general, having IgG antibodies to Toxoplasma gondii suggests a certain level of protection, but the effectiveness and duration of this protection can depend on factors such as the individual’s overall health, the strain of the parasite, and other immune-related considerations.

Packages containing Toxoplasma gondii, IgG antibody

Bad Obstetric History Panel Advanced

Contains 22 tests

Get reports within 168-192 hrs

₹6299

Test Information is reviewed by: Dr. Swati Gupta (Anand), MBBS, MD Lab Medicine and written by Dr. Lipika Khurana, BDS, PGDHHM . The test details are for information purpose only. Consult a doctor before taking any test. Last updated on: 5th Sep 2026

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Toxoplasma gondii, IgG antibody test price for other cities

Price in	Mumbai	Rs. 599
Price in	Thane	Rs. 599
Price in	Bangalore	Rs. 659
Price in	New Delhi	Rs. 579
Price in	Kolkata	Rs. 579

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FAQs related to Toxoplasma gondii, IgG antibody

What is a Toxoplasma gondii, IgG antibody test?

A Toxoplasma gondii, IgG antibody test checks for antibodies indicating past exposure to the toxoplasma gondii parasite, helping assess immunity and infection history.

How is a Toxoplasma gondii, IgG antibody test conducted?

A Toxoplasma gondii, IgG antibody test is a simple blood test with minimal risk. A trained laboratory personnel (phlebotomist) will draw a blood sample from the vein and then the sample is analyzed in a laboratory to measure Toxoplasma gondii IgM antibody levels.

Is there any risk associated with a Toxoplasma gondii, IgG antibody test?

No, there is no risk associated with a Toxoplasma gondii, IgG antibody test. However, some individuals may feel a slight sting when a needle is pricked and experience some bleeding that is normal and usually not bothersome.

What does a positive Toxoplasma gondii, IgG antibody test result indicate?

A positive test result indicates past exposure to the parasite, suggesting potential immunity. It does not specify when the infection occurred.

Is a Toxoplasma gondii, IgG antibody test safe for pregnant women?

Yes, a Toxoplasma gondii, IgG antibody test is safe for pregnant women. It is often included in prenatal screening to detect Toxoplasma infection, which can have serious consequences for the unborn child.

Is toxoplasmosis contagious?

No, Toxoplasmosis is not contagious between people. The infection occurs by ingesting the oocysts of the Toxoplasma gondii parasite, often through contaminated food, water, or contact with infected cat feces. It is not spread directly from person to person.

Can I get reinfected with toxoplasmosis?

Generally, once infected, the body develops immunity but individuals with a weak immune system may be susceptible to reactivation.

Can I prevent a Toxoplasma gondii infection?

Yes, you can reduce the risk of infection by practicing good hygiene, avoiding undercooked or contaminated meat, and minimizing exposure to cat feces.