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16 Cards in this Set
- Front
- Back
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Toxocara canis
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-"dog roundworm"
-final host- domestic dog, fox, wolves, cyotes -eggs can last in soil 3-5 years -eggs go through embryonation to become infectious (2-4 weeks) -direct lifecycle -transmission: fecal/oral, paratenic host, transplacental, transmammary -migration: hepato-tracheal, somatic |
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Generation time
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time between birth (or becoming infectious) until it can produce offspring
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Clinical signs of Toxocara canis
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-potbelly
-coughing -unthriftiness -death -vomiting/diarrhea -bizarre manifestations -abdominal discomfort |
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Visceral larval migrans affect
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liver, lungs, and brain
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Ocular larval migrans affect
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eyes
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Toxocara cati
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-final host- domestic cat, wild felids
-lives in small intestine -direct lifecycle transmission: fecal/oral, rodent paratenic, transmammary |
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Clinical signs of Toxocara cati
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-unthriftniess
-thin with potbelly -chronic cough -vomiting/diarrhea |
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Toxascaris leonina
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-final host- dogs, cats
-direct lifecycle -transmission: fecal/oral, paratenic -never leaves intestinal tract |
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Clinical signs of Toxascaris leonina
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-vomiting/diarrhea
-abdominal pain |
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Baylisascaris spp.
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-final host- skunks, bears, racoons
-live in small intestine -visceral larval migrans -problem in aberrant hosts (fatal) - rabbits, rodents, woodchucks, birds, humans |
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Aelurostrongylus abstrusus
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"lung worm of cats"
-indirect lifecycle- snails, slugs -live in bronchi |
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Scolex
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the head of a cestode
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Strobilla
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the body of a cestode
-contains proglottids |
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Proglottids contain
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egg packets, which contain onchospheres
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Cestode larval forms
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-Cysticercus
-Cysticercoid -Coenurus -Hydatid cyst |
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Trematode stages
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-Metacercaria
-Cercaria -Miracidium -Egg -Adult |
