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Liver Fluke Parasite

Table of contents
  • Context (DTE): Liver fluke parasite found in southern California’s Colorado River.
  • Also called Heterobilharzia americana, it infects dogs when they wade or swim in freshwater inhabited by infected snails, which serve as the intermediate host.
  • The parasite enters the dog’s body through the skin and migrates to the veins of the intestinal lining.
  • It then develops into an adult and mates, laying eggs that can affect the lungs, spleen, liver, and heart.
  • This condition is known as canine schistosomiasis, causing severe debilitation.

Liver fluke

  • Liver flukes are parasitic worms that cause a disease.
  • Habitat: It primarily parasitizes the liver of various mammals, including humans. It can also be found in bile ducts, gallbladder, and liver parenchyma.
  • Pathological Effects: Liver flukes induce pathological lesions in the liver and associated organs, leading to parasitic diseases.
  • Movement: They are capable of moving along the blood circulation, allowing them to migrate to different parts of the liver and associated structures.
  • Life Cycle: Liver flukes have complex life cycles that typically involve 2 or 3 different hosts. They have free-living larval stages in water, indicating an aquatic phase of their life cycle.

Liver Fluke - PMF IAS

Colorado River

  • The name “Colorado” is derived from the Spanish language, meaning “coloured reddish,” reflecting its heavy silt load.
  • It is a significant river in the Southwestern United States and northern Mexico, along with the Rio Grande.
  • It spans 1,450 miles (2,330 km), making it the 5th longest river in the United States.
  • Originating in the central Rocky Mountains, it flows southwest across the Colorado Plateau and passes through the Grand Canyon.
  • It drains an extensive, arid watershed encompassing parts of seven U.S. states and two Mexican states.

    Colorado River - PMF IAS

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