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17 Cards in this Set
- Front
- Back
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____ - may cause allergic dermatitis in horses known as "Queensland itch", "sweet itch", or "summer dermatitis". Loss of hair on dorsal part of body, itching, & self-inflicted trauma.
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Culicoides (biting midges)
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T or F
Ascaris suum larvae invade the wall of the small intestine. |
F - they invade the wall of the cecum & colon
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What is the #1 parasite of public health concern?
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Toxocara canis - large roundworm of dogs
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T or F
Toxocara canis - large roundworm of dogs - underfoes somatic migration/transmission. Rarely it can be transmitted transmammary. |
T
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Capillaria aerophilia (Eucoleus aerophilus) = ____ capillariasis
Capillaris (=Pearsonema) = ___ capillariasis |
bronchial
urinary |
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What parasite causes the following in horses?
"proud flesh" "summer sores" "swamp cancer" |
Habronema
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How are ostertagia larvae differentiated?
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by fecal culture
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Nematodirus: where do larvae develop?
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in the egg
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Dictyocaulus ____ in calves: scours, rapid weight loss, verminous pneumonia, often fatal
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D. viviparous
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Canine _____ worm:
Filaroides = Oslerus |
lungworm
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Dirofilaria immitis:
Tx: adulticide ____ (fast kill) |
melarsomine dihydrochloride (Immiticide)
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Dirofilaria immitis: Prevention - macrolytic lactones:
____ & ____ |
avermectins & milbemycin
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Preventative medications for D. immitis provide "_____ efficacy": assured for 1 month & remains high for an add'l month (important if missed a few doses - not to exceed 10 wks)
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retroactive
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Minor liver trauma from fluke infection can allow Clostridium novyi to invade causing ____ dz
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Black Dz
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Sheep _____: Eimeria ahsata causes whitish, raised lesions, 3-6 mm in diameter in intestinal mucosa, no oocysts in the feces, dx by mucosal smears
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coccidiosis
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EPM - equine protozoal myeloencephalitis caused by Sarcocystis is Tx with ____ (Navigator, Idexx).
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nitrazoxanide
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T or F
Toxoplasmosis in sheep is a major cause of abortion - focal placentitis. |
T
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