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miracidia

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Miracidium (plural, miracidia)
The free-swimming larval form in the life cycle of the liver fluke.
Mentioned in: Fluke Infections
miracidium
[mir′əsid′ē·əm] pl. miracidia
Etymology: Gk, meirakidion, youthfulness
the ciliated larva of a parasitic trematode that hatches from an egg and can survive only by penetrating and further developing within a host snail into a maternal sporocyte that produces more larvae.


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Miracidia are motile and remain infective for 8-12 hours, locating the intermediate snail host by chemotactic stimuli.
This is an ancient disease that may have had historical consequences ... by Mendelson, Marc / CME: Your SA Journal of CPD
This process normally takes up to four weeks producing an intermediate stage called miracidia which must infect a particular type of snail within three hours.
Vet's view by The Journal (Newcastle, England)
In the digestive tract of the snail, the eggs hatch and become miracidia that go through several developmental stages and multiply asexually into thousands of tailed, tree-swimming cercariae.
Opisthorchiasis from imported raw fish by Dan, Michael / Emerging Infectious Diseases
 
 
 
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