Nothing Special   »   [go: up one dir, main page]
1 / 15

Fasciola hepatica

Fasciola hepatica. Jeremy Leibfried Tyler Gronli. Introduction. Phylum: Platyhelminthes Flat worm Liver fluke Effects sheep, cattle, and sometimes humans. Interesting Facts. Eggs found in mummies 1 st fluke or trematode to be reported 1379 Reported in Publication ( Le Bon Berger )

Thomas
Download Presentation

Fasciola hepatica

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Fasciola hepatica Jeremy Leibfried Tyler Gronli

  2. Introduction • Phylum: Platyhelminthes • Flat worm • Liver fluke • Effects sheep, cattle, and sometimes humans

  3. Interesting Facts • Eggs found in mummies • 1st fluke or trematode to be reported • 1379 Reported in Publication (Le Bon Berger) • 1st discovered in sheep

  4. F. hepatica • Definitive host: • Sheep • Cattle • Humans (Accidental) • Other Mammals • Intermediate host • Fresh Water Snail • Geographic Range • Cosmopolitan; anywhere sheep and cattle are raised

  5. Morphology • Adult fluke • Flat leaf like body • 20-30mm long • 8-15mm wide

  6. Site of Infection • Ingestion Metacercariae • Ex-cyst in Duodenum • Burrows through Intestinal Wall • Enters Peritoneal Cavity • Migrates to Liver

  7. Miracidia Egg Cercariae Metacercariae

  8. Symptoms • Abdominal Pain • Anemia • Hepatic Tenderness • Hepatomegaly resulting from Edema • Intermittent Fever • Jaundice • Lethargy • Nausea • Prolonged High Fever • Secondary Infections • Vomitting

  9. Symptoms • Acute • 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

  10. Diagnosis • Stool Samples • 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

  11. Treatment • Bithional • Highly Effective • Large Dose • High Cost • Long Treatment Period • Triclabendazole • Easier to Use • 1-2 Oral Doses in 24 hrs • Virtually 100% Effective • Surgery

  12. Control Methods • Eduaction • 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

More Related