Parasitology

• Disease: Paragonimiasis
• Habitat in human: Lungs – encysted in pairs
• Definitive host: Human
• 02 Intermediate hosts: Snail and crab/cray fish
• Diagnosis: Microscopic examination of sputum to detect eggs

Morphological Features

• Size: 8-12 mm in length and 4-6 mm in breadth
• Colour: Translucent and reddish brown
• Shape: Small and oval in shape
• Scale-like spines cover the tegument
• Has two suckers: oral sucker and ventral sucker
• Testes: lobed, arranged side by side, located behind ovary in posterior third of body
• Ovary: Lobed, lies on left side of body just behind ventral sucker
• Vitelline glands: Extensive and appear as a band along periphery of body