Parasitology

• Disease: Clonorchiasis
• Habitat in human: Biliary tract
• Definitive host- humans and fish-eating canines
• 02 Intermediate hosts: Snails and freshwater fish
• Diagnosis of infection: Microscopic examination of faeces to detect eggs

Morphological Features

• Size 10 – 25 x 3 – 5 mm on average
• Colour: Pinkish red
• Body is flat, transparent and leaf like
• Tegument is without spines
• Oral sucker is slightly larger than acetabulum
• Two branched testes arranged one behind the other; located in a posterior position
• Ovary is small and consists of three lobes, present just above testes
• Seminal receptacle: prominent, located between testes and ovary
• Uterus: ascends up to acetabulum as a broad, tightly looped coil
• Seminal receptacle: prominent, located between testes and ovary
• Uterus: ascends up to acetabulum as a broad
• Vitelline follicles are dense and border uterus