To prevent this disease:
People with HIV who have been infected with T. gondii in the past may need to take antibiotics to prevent toxoplasmosis from recurring.
A fetus that acquires toxoplasmosis can go on to have serious problems, including mental retardation, after birth. Toxoplasmosis can be fatal in people with damaged immune systems.
A pregnant woman who develops toxoplasmosis can spread it to her fetus.