Trematodes

Definition

Trematodes, also known as flukes, are parasitic flatworms that infect various parts of the body including the liver, lungs, and blood vessels. They are a type of helminth with complex life cycles often involving multiple hosts.

5 Must Know Facts For Your Next Test

1. Trematodes typically have a complex life cycle that requires two or more hosts, including at least one intermediate host like a snail.
2. Common diseases caused by trematodes include schistosomiasis and liver fluke infections.
3. Infection usually occurs through ingestion of contaminated water or food, or direct skin contact with contaminated water.
4. Trematode infections can cause severe organ damage and chronic health problems if left untreated.
5. Diagnosis often involves identifying eggs in stool or urine samples, and treatment usually includes antiparasitic medications such as praziquantel.

Review Questions

• What is the common mode of transmission for trematode infections?
• Name two diseases caused by trematodes.
• How are trematode infections commonly diagnosed?

Related terms

Helminths: Parasitic worms that include nematodes (roundworms), cestodes (tapeworms), and trematodes (flukes).

Schistosomiasis:

A disease caused by infection with freshwater parasitic worms in the genus Schistosoma.

Praziquantel:

An antiparasitic medication commonly used to treat trematode and cestode infections.