VPA 211: General Veterinary Parasitology and Helminthology (3+1)

LIFE CYCLE

• Not fully known. Only based on experimental infection the scientists suggested that it requires two I/H.
• Oribatid mite or coprophagus beetles act as 1^st I/H in which cysticercoid like developmental stage occur.
• When infected mite or beetles are ingested by 2^nd I/H in which tetrathyridium is formed. It mainly occurs in the peritoneal cavity of 2^nd I/H and they multiply asexually by longitudinal splitting of parent scolex.
• The final host acquire infection by ingestion of infected 2^nd I/H. Prepatent period is 16 to 20 days