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68 Cards in this Set
- Front
- Back
In a pheasant |
Heterakis gallinarium (larvated egg is infective) |
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In a grouse |
Trichostrongylus taenius |
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Toxocaris leonina (need zinc sulfate or sugar fecal flotation) |
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Toxocara cati (PPP = 47 days) |
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In a dog |
Ancylostoma caninum (transmission through percutaneous, direct, paratenic, and transmammary) |
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Ancylostoma caninum (eggs do not survive well in environment because of thin shell) |
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Two possible answers |
Toxocara canis Tococara cati (this is the male's tail) (lateral alae are different between these two) |
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Two possible answers |
Toxocaris leonina Toxocara canis (fresh eggs look different between these two and males of leonina don't have finger like projection) |
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Uncinaria stenocephala (PPP = 14-18 days) |
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In dog feces |
Strongyloides stercoralis (have a fully free living lifecycle if no dogs around) |
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In a dog |
Trichuris vulpis (hang out in the large intestine and caecum) |
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from a dog has a smooth shell |
Trichuris vulpis (eggs are viable in environment for years) |
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Toxocara cati (transmitted through paratenic host or transmammary) |
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Toxocaris leonina (L3 larvated egg- infectious) |
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Toxocara canis (in small intestine and occasionally stomach) |
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Small egg Two possible answers |
Taenia spp. Echinococus spp. |
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Anoplocephala perfoliata (egg can live for months in environment) |
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Anoplocephala perfoliata (Intermediate host is a mite_ |
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In pig |
Taenia solium (humans can be accidental intermediate host - Run away, very bad) (We are the definitive host) |
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In a dog |
Strongyloides stercoralis (L3 filariform, infective) |
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Ancylostoma (PPP for transmammary transmission is 12-18 days) |
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Uncinaria (females are 15 mm) |
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Dictyocaulus viviparus (L1 found in feces) (pointy end distinguishes this from D. filaria and L1 is smaller 310-360 um) |
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Dictyocaulus filaria (blunt end means D. filaria and it is larger 500-540 um) (can survive freezing for 19 days) |
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Muellerius capillaris or Parelaphostrongylus spp. (L1 - look for kinked tail and dorsal spine above kinked tail) |
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Protostrongylus spp. (L1 - look for spike tail and no dorsal spine) |
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Dictyocaulus arnfieldi (look for tapered end and 450 um long) |
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Dipylidium caninum (proglottids are longer than wide - look like cucumber seeds) |
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Diplylidium caninum (zoonotic to children) |
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Mesocestoides (30 - 70 cm long) |
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Diphyllobothrium lactum or dendriticum (both fish tapeworms that are 3-25 m long) |
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Thysanosoma (in the small intestine and bile and pancreatic ducts of small ruminants) |
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Moniezia (small intestine of ruminants) |
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Two possible species |
Moniezia or Thysanosoma (egg containing hexacanth larva) |
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oslerus osleri (most commonly seen in animals aged 6 months to 2 years) |
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Crenosoma vulpis (look for the crenulated head) (lives in trachea, bronchi, and bronchioles) |
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Wolbachia (gram-negative bacteria that is an endosymbiont with filarial nematodes - heart worm) |
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Dirofilaria immitis (microfilaria in blood smear) |
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Toxocara canis (regular cleaning of the environment is essential for removal of these eggs) |
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Toxocara canis (zoonotic)
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Diphyllobothrium latum or dendriticum (Dark blobby thing is the uterus) (this is zoonotic - eek sushi) |
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70-50 um |
Diphyllobothrium latum or dendriticum (right arrow is the operculum, left arrow is the pimple) |
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Spirometra mansonoides (mostly infects cats and racoons but can infect dogs) |
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Mesocestoides (dogs and cats can be definitive and intermediate hosts) |
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Mesocestoides (thin walled eggs that don't float well) |
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Toxocaris leonina (Generally considered not zoonotic) |
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In dog |
Toxocara canis (found worldwide) |
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Ancylostoma (has three sets of teeth - ouch) |
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Echinococcus (only 4-5 segments long and under 1 cm) |
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Toxocara canis (Tracheal larval migration in the lung of a naive host) |
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Toxocara cati (L3 inside egg is infective state) |
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Eucoleus aerophilus (egg tends to be slightly smaller than Trichuris and has a rough shell) |
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Eucoleus boehmi (surface of egg looks pitted) |
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Trichuris (smooth shelled, egg tends to be darker than Eucoleus) |
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Paragonimus kellicotti (zoonotic) (10-13 x 4-6 mm) |
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ciliated miracidium of Paragonimus kellicotti (hatch from eggs in environment and are eaten by snails) |
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Dirofilaria immitis (zoonotic - L5 can't develop in people so die and create granulomas) |
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Angiostrongylus vasorum (L1 - very active so can be detected with Baermann) |
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Angiostrongylus vasorum (fox is the natural definitive host) |
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Paragonimus kellicottis (arrow is pointing at the thickened opercular ridge) (egg is 75 - 118 x 42 - 67 um) |
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Eucoleus aerophilus (16-44 mm long and very skinny) |
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Two possibilities |
Oslerus osleri Filaroides hirthi (L1 larvae of these species are indistinguishable) |
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Oslerus osleri (PPP = 92 - 126 days) |
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264 - 340 um long |
Crenosoma vulpis (diagnose with Baermann or FLOTAC) |
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360 - 400 um long |
Aleurostrongylus abstrusus (L1 have a dorsal spine on tail) (cats are the only definitive host) |
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In feces from a donkey |
Dictyocaulus arnfieldi |
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in feces from a pig |
Metastrongylus (egg has thick wrinkled shell) (usually seen in pigs 2-4 months of age) |
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protoscolices of Echinococcus spp. (emerge from the hydatid cysts and infect definitive host when eaten) |
