Toxoplasma Gondii - IgG / IgM

Clinical definition of the Toxoplasma Gondii test
Toxoplasmosis is a disease of the cats caused by a parasite called Toxoplasma gondii and may cause flu-like symptoms. It can also be carried by many warm-blooded animals (birds or mammals). Human infection results from ingestion of the parasites in raw or undercooked meat, contaminated vegetables or other foods, following careless handling of cat litter, or from soil by soil-eating children. It can also be transmitted during pregnancy via the placenta.
Toxoplasmosis is a parasitic infection that can be passed from mother to baby through the placenta during pregnancy. An infection with Toxoplasma gondii can cause eye and central nervous system infections as well as brain and muscle cysts. If acquired during the pregnancy, it may result in a miscarriage or cause birth defects, though this depends on the time during the pregnancy in which the infection was acquired by the mother. Toxoplasmosis is acquired by ingesting the parasite when handling the excrement of infected cats, drinking unpasteurized goat’s milk and most commonly, by eating contaminated meat.

Why is the Toxoplasma Gondii test done?
The toxoplasma test looks for antibodies in the blood to the parasite. The test may be done soon after pregnancy to detect toxoplasmosis infection in a newborn baby or to screen pregnant women for the antibodies to the parasite.

What are the common signs/symptoms when the Toxoplasma Gondii test is done?
Symptoms of toxoplasmosis include:

  • Anorexia
  • Weight loss
  • Lethargy
  • Difficulty breathing (because of pneumonia)
  • Eye inflammation and fever
  • Vomiting
  • Diarrhea
  • Neurological symptoms
  • Swollen lymph nodes
  • Jaundice

Who should do the Toxoplasma Gondii test (Target population)?
Persons showing the above signs & symptoms or those who handle cats and are at a high risk of contracting the infection.

What should I do before the Toxoplasma Gondii test?

Specimen type

Specimen collection procedure

Preparatory instructions before the test *

Serum (Blood Sample)

Venipuncture - Collection of blood from a vein, usually from the arm.

No Fasting Required.

No other special preparations required.

*Subjects suffering from any illness or on oral or injectable medications are advised to consult their physician prior to requesting any tests or procedures.

How do I interpret my Toxoplasma Gondii test results?



Reference Range*


Reference Range*


Above 8.0 IU/ml


Equal to or greater than 0.6


00 to 6.5 IU/ml

Non Reactive

Below 0.499 Index

Non Reactive   

6.6 to 8.0 IU/ml


0.500 to 0.599


‘*A Reference range is a set of values which helps the healthcare professional to interpret a medical test. It may vary with age, gender, and other factors. Reference ranges may also vary between labs, in value & units depending on instruments used and method of establishment of reference ranges’

Diseases/conditions related to the Toxoplasma Gondii test

  • Pregnancy test
  • Recurrent abortion

Other tests related to the Toxoplasma Gondii test

  • Rubella Test
  • Cytomegalovirus Test
  • Hepes Simplex Test

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Toxoplasma (IgM )