Metacercaria meaning

Metacercaria is the immature stage of a parasitic flatworm known as a trematode.


Metacercaria definitions

Word backwards airacrecatem
Part of speech Noun
Syllabic division me-ta-cer-ca-ria
Plural The plural of metacercaria is metacercariae.
Total letters 12
Vogais (3) e,a,i
Consonants (4) m,t,c,r

What are Metacercaria?

Metacercaria are the larval stage of a parasitic trematode worm that infects various species of freshwater snails. These larvae are encased in a cyst and are the form in which the parasite typically infects its definitive host, which can include fish, birds, or even mammals.

Life Cycle

The life cycle of metacercaria begins when the eggs of the trematode are released into the environment through the feces of the definitive host. These eggs then hatch into miracidia, which infect snails. Within the snail, the larvae develop into cercariae, which are released back into the water. Once ingested by the definitive host, the cercariae encyst and form metacercaria.

Transmission to Humans

Humans can become infected with metacercaria by consuming raw or undercooked fish or other infected animals. Once ingested, the metacercaria excyst in the small intestine and develop into adult worms, which can cause a range of health issues depending on the species of trematode.

Prevention and Treatment

To prevent infection with metacercaria, it is essential to thoroughly cook all seafood and meat to kill any potential larvae. Additionally, practicing good hygiene, such as washing hands before eating, can help reduce the risk of infection. Treatment for metacercaria infections typically involves antiparasitic medications prescribed by a healthcare professional.

Overall, understanding the life cycle and transmission of metacercaria is crucial in preventing infection and maintaining good health.


Metacercaria Examples

  1. Scientists studied the metacercaria stage of the parasite to understand its life cycle.
  2. The fish was infected with metacercaria after ingesting contaminated water.
  3. Veterinarians detected metacercaria in the tissues of the sick dog.
  4. Researchers are investigating the prevalence of metacercaria in local ponds.
  5. The farmer learned about metacercaria when consulting with a parasitologist.
  6. The aquaculture industry faces challenges with controlling metacercaria infections.
  7. A microscope is needed to observe metacercaria in tissue samples.
  8. The conservationists are concerned about the impact of metacercaria on endangered species.
  9. The doctor prescribed medication to treat the patient's metacercaria infection.
  10. Metacercaria can cause health issues in both animals and humans.


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  • Updated 02/05/2024 - 11:16:01