Introduction to Diagnostic Medical Parasitology

• Diseases
• Parasites
• Methods
• Virtual Microscope
• Diagnostics Keys

Trophozoites

Trophozoites (stained with Giemsa)

Size: 4-8 x 2-3 µm

• Tapered anterior end
• Blunt posterior end
• Large nucleus

Oocyst

Oocysts

Seize:  10-12 µm

• Contain two sporocysts
• Only in the feces of domestic and wild felids, the definitive hosts
• Cysts are shed unsporulated in the feces
• Cysts take 48-72 hours to sporulate and become infective