What is the order of Trematoda?
Table of Contents
What is the order of Trematoda?
Trematodes (flukes) include parasitic flatworms belonging to the phylum Platyhelminthes, class Trematoda, and subclasses Aspidogastrea (two orders, four families) and Digenea (ten orders, more than seventy-two families).
Where are Trematoda found?
Geographic range: Human blood flukes live in the warm regions of the world, especially South America, Africa, the Caribbean, and the Middle East. Habitat: The larvae of human blood flukes live in freshwater snails. The adults live in veins in the abdomens of mammals such as rodents, dogs, cattle, baboons, and humans.
What is the common name for Trematoda?
flukes
Trematodes are commonly referred to as flukes. This term can be traced back to the Old English name for flounder, and refers to the flattened, rhomboidal shape of the worms. The flukes can be classified into two groups based on, on the basis of the system in which they infect their in the vertebrate host.
What is the life cycle of Trematoda?
A typical life cycle of a digenean trematode species will involve at least one intermediate host and a definitive host. Eggs are normally released in water, and then need to either be ingested by a host or often they hatch, the free-swimming larval form (miracidium) needing to then encounter a host within 36 hours.
What are the major groups of trematodes?
Phylum Platyhelminthes, commonly called flatworms, is comprised of four groups: (1) turbellarians, (2) trematodes, (3) monogeneans, and (4) cestodes. They are characterized by their flattened, bilaterally symmetrical body.
What disease does Trematoda cause?
People become infected by eating raw fish, crustaceans or vegetables that harbour the parasite larvae. Foodborne trematodiases are most prevalent in East Asia and South America. Foodborne trematode infections result in severe liver and lung disease.
How are trematodes diagnosed?
Several serologic tests, which can be used to detect either specific antibodies or antigens in the serum, are used in diagnosing trematode infections. Various antibody-based serologic tests are used in the diagnosis of most trematode infections. These tests are used for diagnosis and for seroepidemiologic studies.
What is the difference between Trematoda and Cestoda?
Cestodes are tape-like and segmented in shape, have a head with suckers and possibly hooks, and lack a digestive tract. Trematodes are leaf-like and unsegmented, lack hooks entirely, and have an incomplete digestive tract. Generally, cestodes require two hosts and trematodes need three to complete their life cycles.
Is Trematoda free-living?
The presence of trematodes with a free-living metacercarial stage is a common feature of most habitats and includes important species such as Fasciola hepatica, Parorchis acanthus and Zygocotyle lunata.
Which disease is caused by trematodes?
Key facts
| Disease | Infectious agent | Acquired through consumption of |
|---|---|---|
| Clonorchiasis | Clonorchis sinensis | Freshwater fish |
| Opisthorchiasis | Opisthorchis viverrini, O. felineus | Freshwater fish |
| Fascioliasis | Fasciola hepatica, F. gigantica | Aquatic vegetables |
| Paragonimiasis | Paragonimus spp. | Freshwater crustaceans (crabs and crayfish) |
How does a trematode typically look like?
Trematodes are flatworms classified in the phylum Platyhelminthes, class Trematoda, subclass Digenea. In general, trematodes are dorso-ventrally flattened and leaflike in shape. Their bodies are covered with tegument, which is usually armed with scalelike spines. They have two suckers: one oral and one ventral.
What disease does trematodes cause?
Foodborne trematode infections result in severe liver and lung disease.
How do I get rid of trematodes?
Praziquantel remains the drug of choice for all trematode infections except fascioliasis, for which triclabendazole is the drug of choice. Triclabendazole was approved in the United States in 2019 for fascioliasis in patients aged 6 years or older after being available from the CDC for many years.
Which worms belong to class Trematoda?
fluke, also called blood fluke or trematode, any member of the invertebrate class Trematoda (phylum Platyhelminthes), a group of parasitic flatworms that probably evolved from free-living forms millions of years ago. There are more than 10,000 species of flukes.
Does Trematoda have digestion?
Trematodes have oral and ventral suckers, which they employ for attachment and migration. The digestive system originates at the oral sucker and contains a pharynx, an esophagus, and a bifurcated intestine. There is no anus; thus, waste products must be regurgitated following digestion.
How do you get trematode?
