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50 Cards in this Set

  • Front
  • Back
wild animals serve as ______ of infectious agents to domestic animals
reservoirs
how can parasites flow from wildlife?
arthropod vectors, contaminated food/water, thru environment, contact with wildlife host
why is difficult to define parasites in wildlife
access to wildlife, lack of info on hosts/geographical distributions, validation of diagnostic tests in wildlife
angriostrongylus cantonensis
rat lungworm. IH: snails/slugs. PH: crustaceans/amphibians.
baylisascaris procyonis
causes neuro disease in 90+ wildlife species
plasmodium knowlesi
macaques, malarial dz. Rare for it to switch to humans as a host, but humans can "Catch' the dz from infected macaques
trypanosoma brucei
3 subspecies- brucei, rhodesiense, gambiense. Gambiense associated with the emergence of HIV/AIDS
sarcoptes scabiei
transient, but there is slight risk for humans in contact with wildlife. Detrimental to red fox/coyote populations. Threat to endangered/isolated wildlife populations
what does sarcoptes scabiei cause?
intense pruritis accompanied by erythtmatous eruptions, papule ormation, seborrheoea and alopecia
where does sarcoptes scabiei usually affect animals?
elbow/hocks --> base of tail --> back and distal tail. Can be generalized or localized
cryptosporidium spp.
common in wildlife. Unsure of how wildlife are sources for humans/domestic animals
giardia spp
intestinalis, ardeae/psittaci, muris, agilis
toxoplasma gondii
toxoplasmosis in many wildlife species. Wild game is source of infection to humans/domestics
trichinella spp.
over 150 host species found worldwide. Well tolerated In wildlife
paralaphostrongylus tenuis
affects WTD in eastern NA. abnormal hosts include sheep, goats, llamas and other wild cervids. Clinical signs include rear leg weakness-ataxia, circling, incoordination, blindness, head tilt, emaciation, paralysis
dermacentor albipictus
ungulate hosts: moose, WTD, elk, mule deer, woodland caribou. Domestics: horse/cattle
dermacentor albipictus clinical signs in moose
characteristic hair loss- neck, shoulders, perianal region. Preoccupation with grooming and rubbing, emaciation
fascioloides magna impact
decreased moose calf survival, predisposing factor for wolf predation, reduce antler points, reduce buck fitness for WTD, reduced repro potential for WTD
taenia
canids, felids, and mustelids are DH, prey species are IH
echinococcus
e. granulosus most common, e. multilocularis most pathogenic
anisakis
parasitic nematode that affects fish. Highly infective to humans
encephalitozoon cuniculi
affects rabbits, rodents. Transmitted to humans through infected urine, organism is environmentally resistant. Causes neuro signs, renal disease
parasites that affect exotic small mammals
dirofilaria immitis, otodectes cynotis, psoroptes cuniculi, encephalitozoon cuniculi
parasites that affect ornamental fish
ichthyophthirius multifilis, lernaea, spp
parasite that affects reptiles and amphibians
ophionyssus natricis
exotic companion bird parsites
haemoproteus, leucocytozoon, plasmodium, knemidokoptes, heterakis, ascaridia
dirofilaria immitis in ferrets
life cycle somewhat similar to cats/dogs. L3 via mosquito, can reach heart within 70 d, worm burden of 1-21. most adults in cr and cd vena cava
can ferrets be treated for HW?
yes, but poor success rate, and off-label
otodectes cyanotis in ferrets
smelly, black/grey earwax, pruritis, oozing, cruesting, hair loss around head and neck. Treat with selamectin, ivermectin, imadacloprid/mocidectin- need to treat other pets in household as well
trixacurus caviae
sarcoptic mite of guinea pigs, clinical signs: pruritis, alopecia, erythema, thickened skin, self induced trauma, secondary bact infection.
is trixacurus caviae zoonotic?
yes
signs of psoroptes cuniculi in rabbits?
head shaking, scratching ears, crust in ear canal
what other species can psoroptes cuniculi
mild in sheep/goats
treatment for psoroptes cuniculi?
ivermecic SC every 2 weeks for 3 treatments, selamectin topically every month, mineral oil in ears
what is encephalitozoon cuniculi?
a fungus (microspordian) that parasitizes rabbits, infecting liver, kidney, brain and spinal cord
signs of encephalitozoon cuniculi
partial or complete paralysis, loss of coordination, seizures, head tilt, kidney failure, urinary incontinence, uveitis
encephalitozoon cuniculi treatment
fenbendazole for 28 days
is encephalitizoon cuniculi zoonotic?
yes, opportunistic in immunocompromised humans
ichyophthirius multifiliis clinical signs
small raised white nodules, fish scratching along rocks and gravel, lethargy, impaired respiration
lernaea spp clinical signs
white or red "Worms" attached to lesions, flashing, erythema at attachment site, lethargy, secondary bacterial infection
why is anchorworm (lernaea) a misnomer?
it Is actually a crustacean
ophionyssus natricis
snake mite
what is leucocytozoon transmitted by
black flies
what is haemoproteus transmitted by
hippoboscid flies
what is plasmodium transmitted by?
culex mosquitos
what do leucocytozon, haemoproteus and plasmodium all cause?
bird malaraia and malaria like hemoprotozoans of birds
two ascarids of poultry and many wild birds
heterakis and ascaridia
where can knemidokoptes spp affect?
mutans- leg; jamaicensis-legs, pilae- face/vent/legs
signs of knemidokoptes spp?
pruritis, pitting, scaly, crusty lesion, localized swelling of tissue, loose scales, thick and deformed legs
knemidokopts treatment
ivermectin every ten days for 4 treatments