Parasites and health [Last Modified: ]
Intestinal parasites: Comparative morphology

Figure 2
Protozoa Found in Stool Specimens of Humans: Ciliate and Flagellates

Ciliate

Flagellates

Balantidium
coli

Chilomastix
mesnili

Giardia
intestinalis

Dientamoeba
fragilis

Balantidium coli trophozoite

 Chilomastix mesnili trophozoite Giardia intestinalis trophozoite

Dientamoeba fragilis

Balantidium coli cyst

Chilomastix mesnili cyst

Giardia intestinalis cyst

no
cyst stage
Chilomastix mesnili cyst Giardia intestinalis cyst

_______
40 µm

______
10 µm

 
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