Echinostomiasis - Echinostoma Life Cycle 1) Unembroynated eggs passed in feces 2) Embryonated eggs in water 3) Miracidia hatch from eggs, seek out snail host 4) Miracidum penetrates snail host 5) Free-swimming cercariae invade second intermediate host. 6) Metacercariae in second intermediate host ingested by definitive host. 7) Excyst in duodenum 8) Adult in small intestine #Echinostomiasis #Echinostoma #LifeCycle #diagnosis #pathophysiology #infectiousdiseases #cdc #parasite #fluke
