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24 Cards in this Set

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  • Back
Gasterophilus intestinalis
Adult flies lay eggs on hairs of lower forelegs; horse licks the eggs, which hatch and L1 larvae penetrate oral mucosa
Gasterophilus nasalis
Adult flies lay eggs in submandibular region; eggs hatch and L1 larvae migrate to mouth and penetrate oral mucosa
Draschia megastoma
Habronema spp.
L3 larvae crawls off of mouth of feeding fly (house fly or stable fly) and is swallowed
Trichostrongylus axei
Ingestion of L3 larvae
Parascaris equorum
Ingestion of L2 egg
Strongyloides westeri
Skin penetration, ingestion, or transmammary transmission of L3 larvae
Anoplocephala spp.
Paranaplocephala spp.
Ingestion of IH (Oribatid mites in feed) containing cysticercoid
Eimeria leuckerti
Ingestion of sporulated oocyst
Cryptosporidium parvum
Ingestion of sporulated oocyst
Strongylus spp.
Ingestion of L3 larvae
Trichomonas equi
Ingestion of trophozoite
Fasciola hepatica
Ingestion of metacercaria on vegetation
Echinococcus granulosus
Ingestion of eggs (IH, NOT DH) produced by DH (canids)
Heterobilharzia americana
Ingestion of metacercaria in IH (lymnaeid snails)
Klossiella equi
Ingestion of sporulated oocyst
Setaria equina
Salivarian transmission by IH (stable fly, mosquitos) during blood meal; L3 larvae
Dictyocaulus arnfeldi
Ingestion of L3 larvae
Thelazia lacrymalis
Passed from mouth of IH (Musca, Fanna spp.) when feeding from eye secretions; L3 larvae
Sarcocystis neurona
Ingestion of sporulated oocyst from opossums; accidental hosts
Halichephalobus deletrix
Inhalation or penetration of oral wound by L3 larvae (from free-living adults)
Trypanosoma evansi
Salivarian transmission by vampire bat; mechanical transmission by horse fly; trypomastigotes
Babesia caballi
Salivarian transmission during tick blood meal (Dermacentor nitans, D. albipictus, D. variabilis); sporozoites
Babesia equi
Salivarian transmission during tick blood meal (Amblyomma cajenense, Dermacentor nitans, D. variabilis, Boophilus microplus); sporozoites
Onchocerca spp.
Salivarian transmission by IH (Culicoides) during blood meal; L3 larvae