Animal Parasitology


entire adult worm	scolex showing hooks	hydatid brood capsule with protoscolices
Definitive hosts: carnivores, especially canids but also felids Site of infection: small intestine Typical size: 5-6 mm in length Distribution: cosmopolitan Intermediate hosts: a wide range of mammals may be employed, including humans, which harbor unilocular hydatid cysts containing thousands of protoscolices

Biology 625
ANIMAL PARASITOLOGY
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Echinococcus granulosus (Cyclophyllidea)

entire adult worm scolex showing hooks hydatid brood capsule with protoscolices

Definitive hosts: carnivores, especially canids but also felids
Site of infection: small intestine
Typical size: 5-6 mm in length
Distribution: cosmopolitan
Intermediate hosts: a wide range of mammals may be employed, including humans, which harbor unilocular hydatid cysts containing thousands of protoscolices

Echinococcus granulosus (Cyclophyllidea)