Ruminant Cestodes & Trematodes

WHat is the only DH ruminant true tapeworm?

Moniezia

True or False: it is safe to use praziquantel in ruminants.

FALSE

Why is there no treatment for taenia and echinoccosu in ruminants?

They are the intermediate host and most times we do not treat the intermediate.

GI related trematodes

• Fasciola

• Fascioloides

• Dircoelium

• Paramphistomatidae

What species have been tos een to have economically important infections of F. hepatica?

cattle, sheep, alpacas, llamas

Pathogenesis of F. hepatica

YOUNG FLUKES destroy liver parachyma and cause black disease (clostridium novyi)

True or False: Liver flukes are most pathogenic in cattle.

FALSE. sheep

How do you diagnose flukes in ruminants?

fecal sedimentation

Treatment of Trematodes in ruminants.

Clorsulon and Albendazole

Can humans become ifnected with F. hepatica

YES

What is the natural host of F. magna?

Deer

True or False: Only cattle constantly shed eggs of F. magna throughout their lives

FALSE. only deer shed eggs

Which species does F. magna cause the most damage? Why?

Sheep becaise they wander through the liver a lot whereas in cattle it is encapsulated.

What fluke is known as Lancet liver fluke?

Dicrocoelium dendriticum

Where do you commonly find D. dendriticum in the US?

NY, PA

Intermediate hosts of D. dendriticum

1st - terrestrial snail

2nd - ants

Can humans be infected with D. dendriticum?

YES

What are paramphistomes referred to as?

Rumen flukes