TOXOPLASMA-IgG Detail

The Toxoplasma IgG Test is a blood test that measures IgG antibodies against Toxoplasma gondii, the parasite responsible for toxoplasmosis. IgG antibodies appear several weeks after infection and typically remain in the body for life, providing long-term immunity.

A positive IgG result usually indicates a past exposure or infection, meaning the individual is likely immune and not at risk of re-infection. However, in cases of pregnancy or immunocompromised conditions, further evaluation may be necessary to rule out reactivation or new infection.

This test is commonly ordered alongside Toxoplasma IgM to distinguish between recent and old infections. It is especially important in:

• Pregnant women, to assess risk to the fetus

• Immunosuppressed patients, where reactivation of latent infection can cause severe illness