Caption: Sheep liver fluke / trematode (Dicrocoelium dendriticum). This fluke, called the lancet liver fluke, lives in a number of domestic animals including cattle, sheep and pigs. Spurious infections can occur in humans who have eaten infected animal liver. Two intermediate hosts, the terrestrial snail (Cionella lubrica) and ants (Formosa spp.) are present in the completely terrestrial life cycle. Eggs are deposited in hostÁs droppings and are ingested by terrestrial snail. Sporocysts are secreted in a mucous material that is eaten by ants. The animal host becomes infected by eating infected ants while grazing. The parasite eventually migrates into the bile duct and and gall bladder.
Magnification*: x10
Type: SEM
Copyright 2002 Dennis Kunkel Microscopy, Inc.
Keywords: 03.01.02,22068C,animal disease,Dicrocoelium,Dicrocoelium dendriticum,fluke,human disease,invertebrate,invertebrates,lancet liver fluke,liver,liver fluke,misc. invertebrates,parasite,parasitic,parasitic fluke,sheep fluke,oral sucker,SEM,trematode