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Unformatted text preview: and swim about until they detect and enter a particular species of snail. The larvae reproduce asexually and eventually leave the snail. Once larvae penetrate human skin they begin to mature in the liver, and implant in blood vessels of the small intestine . A weakened person is then more likely to die from secondary diseases. The Chinese liver fluke, shown in Figure 21, requires two intermediate hosts. Humans become infected when they eat uncooked fish. Adults migrate to the liver and deposit eggs in the bile duct, which carries the eggs to the intestine. The larval flukes must then pass through two intermediate hosts, a snail and a fish....
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- Fall '10
- Biology, Digenea, flukes