A 4 year old child presents with acute watery diarrhea and abdominal cramps. Stool microscopy reveals trophozoites with falling leaf motility. The etiological agent is?
The trophozoite is motile, with a slow oscillation about its long axis, which has been likened to the motion of a 'falling leaf.' It divides by longitudinal binary fission. It lives in the duodenum and upper pa of the jejunum attached by means of the sucking disc to the epithelial cells of the villi and crypts feeding by pinocytosis
Entamoeba hisiolutics
Giardia lamblia
Trichomonas tenax
Balantidium coli
parasitology