Heterophyes LifeCycle

Heterophyes LifeCycle



Cercanae penetrate the skin of fresh/brackish water fish and encyst as metacercanae in the tissue of ttie fish






Snail host ingests eggs. miracKlia emerge from eggs and penetrate the snails intestme


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Sporocysts a^Rediae    Cercariae

_in snail tissue_


O

Host becomes mfected by ingesting undercooked fish contaming metacercanae .A,

Metacercanae excyst in the smali intestme

Adułt in smali intestine

= tnfectwe Stage A - Diagnostic Stage


A

Embryonated eggs each with a ful(y-devek>ped miracidium are passed in feces



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