Sabin - Feldman dye test is used in the diagnosis of: (A) Toxoplasmosis, (B) Toxocariosis, (C) Cryptosporidiosis, (D) Schistosomiasis
Answer is A. Sabin - Feld man dye test - Highly sensitive and specific in diagnosis of Toxoplasmosis. 
Patient serum + live tachyzoites+ complement + Methylene blue