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93 Cards in this Set

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Psoroptes Ovis
Mite

Sheep Scab: pustulation, inflammation, serous exudate & toughening of the skin
Chorioptes bovis
Cattle Scab: rarely severe, pustulation, wrinkling & toughening of the skin
Sarcoptes scabiei
Dogs, pigs & other animals

Mange: papules & skin thickening

Scabies (1 strain): zoonotic
Knemidocoptes mutans
Poultry - Mite

Scaly leg: distortion & lameness of feet
Knemidocoptes gallinae
Poultry Mite

Infests at base of feathers, causing depluming itch
Knemidocoptes pilae
Cage Birds - Mite

Scaly face
Otodectes cynotis
Dogs & cats

Causes otitis
Demodex
Live in hair follicles, NOT pruritic, can lead to secondary bacterial infection
Trobiculids
Dog & Cat Harvest Mite

Only parasitic as larvae, EXTREME PRURITIS
Cheyletiella
Cat Fur Mite: C. Blakei is ZOONOTIC

Little dx, Hi dandruff
Dermanyssus gallinae
Poultry: "Red Mite" ZOONOTIC
Free-living mite
Inflammation & pruritis
Ornithonyssus sylvarium
Poultry mite
Dermatophagoides Mites
Protein in feces is highly allergenic: Causes respiratory & skin allergies
Boophilus
Cattle

Anaplasmosis (A. marginale), Babeiosis
Rhipicephalus sanguineus
Dog Tick

Babeosis, Ehrlichiosis/ Tropical Canine Pancytopaenia (Ehrlichia canis), Theileriosis
Ixodes ricinus
Tick

Babeiosis, Ehrlichiosis/ Tick Borne Fever (E. phagocytophilia/ A. phagocytophilum), Louping Ill, Lyme Disease (B. burgdorferi)
Tick Pyremia
"Cripples"

Systemic S. aureus infection associated with tick infestation
Linognathus vituli
Sucking/ Anoplura

Long-nosed cattle louse
Linognathus ovillus
Sucking/ Anoplura

Sheep face louse
Linognathus pedalis
Sucking/ Anoplura

Sheep foot louse
Linognathus setosus
Sucking/ Anoplura

Dog louse
Haematopinus eurysternus
Sucking/ Anoplura

Short-nosed cattle louse
Haematpinus asini
Sucking/ Anoplura

Horse louse
Haematpinus suis
Sucking/ Anoplura

Pig louse
Trichodected canis
Chewing/ Ischnocera

Dog louse; Speads Dipylidium tape worm
Felicola subrostratus
Chewing/ Ischnocera

Cat louse
Lipeureus caponis
Chewing/ Ischnocera

Poultry wing louse
Cuclotogaster
Chewing/ Ischnocera

Poultry head louse
Ctenocephalides felis
Cat flea
Ctenocephalides canis
Dog Flea
Ceratophylus gallinae
Chicken flea
Echidnophaga gallinae
Sticktight flea

Poultry (In tropics)
Musca autumnalis
Nuisance fly

Trans: Parafilaria bovis, Thelazia
Haematobia sp.
Biting fly

"Horn Fly"
Somoxys sp.
Biting fly

Trans: Trypanosomiasis, Ehrlichia (Potomac Horse Fever)
Tabanids
Biting fly

Trans: Trypanosomiasis
Melophagus ovinus
Biting fly

Sheep Ked, no wings
Culicoides midges
Biting Midges

Trans: Blue Tongue Virus, African Horse Sickness
Mosquitoes
Biting Fly

Trans: Dirofilaria immitis (heartworm), West Nile Virus, Rift Valley Feer Virus, Equine Encephalitis Viruses
Phlebotomus (Sand Fly)
Biting Fly

Trans: Leishmaniasis
Lucilia (Blow Fly)
Facilitative myiasis: can survive on carcasses

3 larval stages, pupa in soil
Hypoderma (Warble Fly)
Obligate Myasis: specialized for live cattle

Eggs laid on leg> ingested> migrates to back muscle
Entamoeba
-Protozoa, monoxenous
-Dogs
-Trophozoite in gut > cysts in feces
Balantidium
-Protozoa, monoxenous
-Pigs, ZOONOTIC
-Trophozoite in gut > cysts in feces
Giardia
-Protozoa, monoxenous
-Dogs & cats, ZOONOTIC
-Trophozoite in gut > cysts in feces
Trichomonas
-Protozoa, monoxenous
-Birds
-NO cyst form
Histomonas
-Protozoa, monoxenous
-Poultry
-Transferred by Heterakis gallinarium (nematode) eggs
Trichomonas foetus
-Protozoa, monoxenous
-Cattle
-Vagina & prepuce > infertility & abortion
Trichomonas equiperdum
-Protozoa, monoxenous
-Horses & Donkeys
-Dourine (oedema in penis & vulva)
Eimeria
-Protozoa, monoxenous, INTRA
-Many species succeptible
-Sexual & asexual repro
-Coccidiosis
Isospora
-Protozoa, monoxenous, INTRA
-Dog, Cat & Pig
-Enteritis
Cryptosporidium
-Protozoa, monoxenous, INTRA
-Many species, ZOONOTIC
-Waterborne
-Enteritis
Sarcosystis
-Protozoa, heteroxenous
-Predator/prey combinations
-Disease associated with intermediate host when migrating in host
Toxoplasma gondii
-Protozoa, heteroxenous
-Cat/mouse, ZOONOTIC
-Disease in intermediate & accidental hosts
Neospora caninum
-Protozoa, heteroxenous
-Dog/bovine, equine, ovine
-Causes abortion in cattle, verticle transmission possible
Babesia sp.
-Protozoa, heteroxenous, VECT
-Ixodes > Cattle, ZOONOTIC
-Intra-erythocytic
Trypanasoma theileria
-Protozoa, heteroxenous, VECT
-Tabanids > Cattle
-Unsymptomatic in UK
Trypanasoma melophagium
-Protozoa, heteroxenous, VECT
-Melophagus (Ked) > Sheep
-Unsymptomatic in UK
Malaria sp.
-Protozoa, heteroxenous, VECT
-Mosquitoes > Mostly Birds
- Intraerythrocytic > problems for captive penguins
Leishmania sp.
-Protozoa, heteroxenous, VECT
-Phlebotomus (Sand Flies) > Dogs, Rodents, ZOONOTIC
-No vectors in UK
Fasciola hepatica
-Trematode
-Sheep, Liver Fluke
-Eggs > Amphibious Snail > Metacercaria on grass > Sheep
-Liver & bile duct damage
Dicrocoelium dendriticum
-Sheep, liver fluke
-Eggs > Land snail > Cercaria in slime ball > Ant > Metacercaria alter ant behavior > Sheep
-Limited pathogenicity
Schistosoma sp.
-Blood fluke
-Avoids host response with "camoflage"
Taenia saginata & T. solium
-Tapeworm
-Human/pig
-Cysts in pig meat > Human taeniasis; problem from human fecal contamination = cystircercosis
Taenia ovis
-Tapeworm
-Dog/ Sheep
-Disease not an issue, problems in sheep meat quality
Echinococcus multilocularis
-Tapeworm
-Dog/Rodent, ZOONOTIC
-Hydatid cysts in intermediate hosts (Liver in humans)
Anoplocephalan Tapeworms
Not Predator / Prey Relationships
Diplidium caninum
-Tapeworm
-Dogs & Cat / Fleas & Lice
-Flea ingests eggs > Cysticercoid develops in flea > Flea eaten by dog or cat
Moniezia Expansa
-Tapeworm
-Sheep / Mites
-Little clinical harm
Moniezia benedeni
-Tapeworm
-Cattle / Mites
-Little clinical harm
Anoplocephala perfoliata & A. magna
-Tapeworm
-Horse / oribatid mites
-Damage to gut mucosa
Trichostrongylus sp.
-Nematode - Trichostrongyle
-Ruminants or poultry
-Abomasum or SI
-Parasitic gastroenteritis (PGE)
Osteragia sp.
-Nematode - Trichostrongyle
-Cattle
-Bovine osteragia
-Larval development in abomasum wall, seasonally induced hypobiosis (L4)
Nemotodirus sp.
-Nematode - Trichostrongyle
-Sheep
-Development in gut lumen
-Has critical hatching conditions, eggs can persist for 2 years
Haemonchus sp.
-Nematode - Trichostrongyle
-Cattle, sheep, goats
-Abomasum
-Blood-feeding worm
Cooperia sp.
-Nematode - Trichostrongyle
-Ruminants
-Comma shap, "Watch spring"
Heterakis sp.
-Nematode - Ascarid (Non-mig)
-Domestic & wild birds
-LI
-Earthworms are paratenic or transport host, transmission of Histomonas melegridis
Ascaridia sp.
-Nematode - Ascarid (Non-mig)
-Poultry & wild birds
-SI
-Catarrhal or Hemorrhagic
Toxascaris leonina
-Nematode - Ascarid (Non-mig)
-Dogs & cats
-SI
-Mice can be paratenic host
Ascaris suum
-Nematode - Ascarid (Migrat)
-Pigs
-Hepato-tracheal migration
-Ascaris pneumonia
Toxacara canis
-Nematode - Ascarid (Migrat)
-Dogs - ZOONOTIC
-Hepato-trachial & somatic migration
-Visceral larval migrans, Transmammary & transplacental infection possible
Trichinella spiralis
-Nematode - Ascarid (Migrat)
-Pigs - ZOONOTIC
-In muscles of domestic animals
Oesophagostomum sp.
-Nematode - Stongyle - Tissue
-Ruminants
-Gut wall nodules
Chabertia sp.
-Nematode - Stongyle - Tissue
-Ruminants
-Colon
-Largest nematode, rarely causes disease
Equine cyathostomes
-Nematode - Stongyle - Tissue
-Horses
-Gut wall & free-living
-NON-MIGRATORY LARVAE
Strongylus vulgaris
-Nematode - Stongyle - Tissue
-Horses
-Submucousa & main Mesenteric artery
-MIGRATORY LARVAE
Bunostomum sp.
-Nematode - Hookworm - Tissue
-Ruminants
-SI
-Percutaneous or oral infection
Unicinaria sp.
-Nematode - Hookworm - Tissue
-Dogs & cats
-Percutaneous infection can lead to hypersensitivity rxn
Ancylostoma sp.
-Nematode - Hookworm - Tissue
-Dogs
-Percutaneous or oral infection, prenatal or intramammary
-"Tropical canine hookworm," migrate to tissues > hypobiosis till preganancy
Dictocaulus sp.
-Nematode - Lungworm - Tissue
-Ruminants, horses
-Alveoli > bronchi
-Parasitic bronchitis, uses "shotgun fungus", vaccination using irradiated L3
Metastrongylus sp.
-Nematode - Hookworm - Tissue
-Pigs / earthworm
-Worm is paratenic host
-Pig ingests > lymphatic system > lungs > gut
Parafilaria sp.
-Nematode - Filarial - Tissue
-Horses & cattle / flies
-Verminous nodules in skin, no blood-sucking fly
Dirofilaria sp.
-Nematode - Filarial - Tissue
-Dogs / mosquitoes
-"Canine heartworm"
-Larvae develop in mosquito > injected into dog