- Detected in faecal specimens of infected human or rodent
- Eggs embryonated when passed
- Egg infective to intermediate host – arthropods
Diagnostic Features
- Size: 72 µm (range: 70-86 µm x 60-80 µm)
- Shape: Round or slightly oval
- Colour: Yellow brown
- Shell has 2 membranes: a striated outer membrane and a thin inner membrane
- Space between membranes may appear smooth or faintly granular
- Two slight polar thickenings on inner membrane – but not very visible
- No polar filaments
- Contains a 6-hooked oncosphere inside shell
