1.

A 4 years old child presents with acute watery diarrhoea and abdominal cramps. Stool microscopy reveals trophozoites with falling leaf motility. The etiological agent is -

A. Entamoeba histolytica
B. Giardia lamblia
C. Trichomonas tenax
D. Balantidium coli
Answer» C. Trichomonas tenax


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