- Not infective to human
- Detected in faecal specimens of infected human
Diagnostic Features
- Size: 90 µm x 40 µm. Range, 85-95 µm x 35-45 µm – larger than fertilised egg
- Shape: Elongated
- Colour: Brown
- Mammillated covering absent or less prominent
- Shell is often very thin
- Filled with an irregular mass of protoplasm