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What is the common name for Spirocerca lupi?
Esphageal worm
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What is the final host for Spirocerca lupi?
The dog
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What is the intermediate host for Spirocerca lupi?
The dung beetle
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What are the paratenic (transport) hosts for Spirocerca lupi?
The chicken, lizard and bird (encysts in the viscera)
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What is the life cycle of Spirocerca lupi?
Indirect L3 in insect (dung beetle)
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Describe an adult Spirocerca lupi.
Pink to red in color. Up to 8cm long
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What is the Prepatent period (PPP) for Spirocerca lupi
6 mo
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What are the sites of infection for Spirocerca lupi?
The granulomatous nodules in the esophagus and stomach.
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What are some clinical signs of Spirocerca lupi?
Esophageal lesions intefere with swallowing and cause persistent regurgitaion.
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Methods for diagnosis?
Eggs in feces or vomitus. Endoscopy and radiography.
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What is the final host of the Physaloptera spp?
The dog and cat.
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What are the intermediate hosts for Physaloptera spp
Beetles, cockroaches, crickets
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What are the paratenic hosts of Physaloptera spp?
Snakes and birds
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What is the life cycle of the Physaloptera spp?
Indirect L3
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What do the adults and eggs of the Physaloptera spp look like?
- A: 4-6cm in stomach
- E: elongate, similar to Spiricerca lupi, just more oval.
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What are the sites of infection for Physaloptera spp?
Stomach
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What are the clinical signs of Physaloptera spp?
Vomition common, bloody feces
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Methods for diagnosis?
Eggs found in feces or vomit, endoscopy
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Found the feces of some infected animals?
- If the granulomas do not have openings into the esophageal lumen, the eggs will not be laid in the ingesta and not found in the fecal flotation
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