This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Parasitology Pa 1 (Protozoology), Subject name: Microbiology
Flask shaped ulcers seen in a dysentry patient is diagnostic of: 
Select and explain. 
A. Shigellosis, B. Amoebiasis, C. Giardiasis, D. Typhoid
B: Amoebiasis
Answer: B: Amoebiasis 
Explanation: Flask shaped ulcers seen in intestinal Amoebiasis. The most Diagnostic test of amoebiasis is ELISA.