1. Jeremy Leibfried Tyler Gronli
Fasciola hepatica
Jeremy Leibfried
Tyler Gronli

2. Introduction Phylum: Platyhelminthes Flat worm Liver fluke
Effects sheep, cattle, and sometimes humans
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4. Interesting Facts Eggs found in mummies
1st fluke or trematode to be reported
1379 Reported in Publication (Le Bon Berger)
1st discovered in sheep
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5. F. hepatica Definitive host: Intermediate host Geographic Range Sheep
Cattle
Humans (Accidental)
Other Mammals
Intermediate host
Fresh Water Snail
Geographic Range
Cosmopolitan; anywhere sheep and cattle are raised
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6. Morphology Adult fluke Flat leaf like body 20-30mm long 8-15mm wide
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7. Site of Infection Ingestion Metacercariae Ex-cyst in Duodenum
Burrows through Intestinal Wall
Enters Peritoneal Cavity
Migrates to Liver
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9. Miracidia
Egg
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Cercariae
Metacercariae

10. Symptoms Abdominal Pain Anemia Hepatic Tenderness
Hepatomegaly resulting from Edema
Intermittent Fever
Jaundice
Lethargy
Nausea
Prolonged High Fever
Secondary Infections
Vomitting
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11. Symptoms Acute Chronic Halzoun More common in sheep
10,000+ Metacercariea consumed at one time
Dramatic Liver Inflamation, Frequently Resulting in Death
Chronic
More Common and Rarely Fatal
Nonspecific Symptoms
Halzoun
Eating raw, infected liver
Infects pharynx
Causes swelling and obstructs breathing
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12. Diagnosis Stool Samples Duodenal or Biliary Aspirate Antibody Test
Yellow-Brown Eggs
Eggs Don’t Show for 4 Months
Duodenal or Biliary Aspirate
Antibody Test
Can detect 2 Weeks After Infection
Ultrasound
Visualize Adults in Bile Duct
CT Scan
Reveals Burrows in Liver
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13. Treatment Bithional Triclabendazole Surgery Highly Effective
Large Dose
High Cost
Long Treatment Period
Triclabendazole
Easier to Use
1-2 Oral Doses in 24 hrs
Virtually 100% Effective
Surgery
Jeremy

14. Control Methods Eduaction Moluskicide
Cheapest and Most Cost Effective Way
Wash Aquatic Vegetables in 6% Vinegar for 5-10 minutes
Better herding practices
Keep herds away from aquatic areas
Moluskicide
Controls Intermediate Snail Host
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15. Jeremy