Most primary infections produce no symptoms. The time between exposure to the infection and symptom development is 1 - 2 weeks. The disease can affect the brain, lung, heart, eyes, or liver.
Symptoms in persons with otherwise healthy immune systems:
Symptoms in immunosuppressed persons:
For symptoms in babies born with the condition, see congenital toxoplasmosis.
Tests to determine infection or to find cysts:
Cohen J, Powderly WG. Infectious Diseases. 2nd ed. New York, NY: Elsevier; 2004.
Mandell GL, Bennett JE, Dolin R. Principles and Practice of Infectious Diseases. 6th ed. London: Churchill Livingstone; 2005.