Fasciola Hepatica | Liver Fluke |

 Mode of infection :

 Infection of freshwater plants with metacercariae or by drinking water with floating metacercariae example lettuce green salad.

Definite host : human

Intermediate host : freshwater snails

 Reservoir host : sheep

 Infective form : metacercariae

 Pathogenicity :

1.   While passing through the liver the large form causes hepatitis damage. 
2. may cause abscesses of lungs , body wall on fibrotic lesions.
3.  produces severe parenchymal disease of liver for which the parasite is called liver fluke and disease is known as liver rot.
4. necrosis of liver
5.  anaemia common inflammation and damage of bile duct.
6. respiratory blockage of lungs
7. Hyperplasia

 Symptoms :

1.  abdominal pain
2. Anemia
3. prolonged high fever
4.  Nausea
5. Jaundice
6. Lethargy
7.  Tenderness
8. Hepatomegaly
9.  fatty food intolerance

 Treatment :

 Bithional :

1.  Highly Effective
2.  large dose
3. high cost
4.  long period

 

 Triclabendazole :

1.  easier to use
2.  one to two oral doses in 24 hours
3. Surgery

 Control :

 people residing in areas frequently with sheep and cattle should specially avoid ingestion of watercress and uncooked aquatic vegetation .