| 21. | It gains entry to its first intermediate host by being eaten.
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| 22. | Attempts to send infected snails, the intermediate host, by mail had been unsuccessful.
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| 23. | These develop in the intermediate host's tissue when eggs are consumed.
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| 24. | Freshwater fish are a second intermediate host for the parasitic worm.
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| 25. | This fluke is highly specific at the first intermediate host level.
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| 26. | The nematode larva reaches its infective stage within this intermediate host.
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| 27. | Ingestion of infected intermediate host tissue by the definitive host completes the life cycle.
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| 28. | When the intermediate host is eaten by the definitive host, the cycle is completed.
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| 29. | Arthropods are then able to act as the intermediate host.
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| 30. | Acquisition of the parasite occurs more frequently among definitive hosts than among intermediate hosts.
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