Flukes

Definition

Flukes are parasitic flatworms belonging to the class Trematoda. These helminths often infect the gastrointestinal tract of their hosts, including humans.

5 Must Know Facts For Your Next Test

1. Flukes have complex life cycles that typically involve multiple hosts, including a primary host and one or more intermediate hosts.
2. Common species that infect humans include liver flukes (Clonorchis sinensis) and intestinal flukes (Fasciolopsis buski).
3. Transmission to humans often occurs through the consumption of contaminated water or undercooked aquatic animals.
4. Fluke infections can cause significant health issues such as liver disease, gastrointestinal distress, and malnutrition.
5. Diagnosis of fluke infections is typically made through stool sample analysis, where eggs are identified under a microscope.

Review Questions

• What are the common ways through which humans can contract fluke infections?
• Which organs are primarily affected by infections from liver flukes and intestinal flukes?
• How is the presence of a fluke infection usually diagnosed in patients?

Related terms

Helminths: A broad category of parasitic worms that includes flatworms like flukes and roundworms.

Trematoda: The class within the phylum Platyhelminthes to which all flukes belong.

Gastrointestinal Tract Infections: Infections that affect the digestive system, often caused by bacteria, viruses, or parasites like helminths.