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Hydatid disease

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Microbiology

Definition

Hydatid disease, also known as echinococcosis, is a parasitic infection caused by the larval stage of Echinococcus tapeworms. It typically forms cysts in the liver and lungs, leading to various health complications.

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5 Must Know Facts For Your Next Test

  1. Hydatid disease is primarily caused by Echinococcus granulosus and Echinococcus multilocularis.
  2. Humans acquire hydatid disease through ingestion of food or water contaminated with tapeworm eggs from dog feces.
  3. The disease manifests as cystic echinococcosis (CE) or alveolar echinococcosis (AE), with CE being more common.
  4. Symptoms can include abdominal pain, nausea, and jaundice if the liver is affected, or cough and chest pain if the lungs are involved.
  5. Diagnosis often involves imaging techniques like ultrasound or CT scans, along with serological tests.

Review Questions

  • What are the primary causative agents of hydatid disease?
  • How do humans typically contract hydatid disease?
  • What are some common symptoms of hydatid disease depending on the affected organ?

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