This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Parasitology, Subject name: Microbiology
A butcher, who is fond of eating raw hamburger, develops chorioretinitis; a Sabin-Feldman dye test is positive. This patient is most likely infected with 
Select and explain. 
A. Trichinosis, B. Schistosomiasis, C. Toxoplasmosis, D. Visceral larva migrans
C: Toxoplasmosis
Answer: C: Toxoplasmosis 
Explanation: Toxoplasmosis, for example, is generally a mild, self-limiting disease; however, severe fetal disease is possible if pregnant women ingest Toxoplasma oocysts. Consumption of uncooked meat may result in either an acute toxoplasmosis or a chronic toxoplasmosis that is associated with serious eye disease. Most adults have antibody titers to Toxoplasma and thus would have a positive Sabin-Feldman dye test.