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Parasites

304.2 Vet nursing parasites

DefinitionTerm
Mite with an elongated shape, lives deep in the hair follicles Demodex canis
Mite that lives in the ear, long curly legs Otodectes cynotis
Mite with triangular spines on its back. Causes sarcoptic mange Sarcoptes scabiei
Mite with big claws. Also known as walking dandruff. Cheiletiella spp
Blood red mite whose larvae cause problems, only 3 pairs of legs. Trombicula autumnalis
Scientific name for Tapeworms Cestodes
Most common tick in the UK Ixodes ricinus
Most common flea in the UK Ctenocephalides felis
Live outside the host Ectoparasite
Live Inside the host Endoparastite
Ectoparasite with 3 sets of legs as an adult, body is divided into 3 parts Insect
Ectoparasite with 4 sets of legs as an adult, body is divided into 2 parts Arachnid
Louse with a head as wide as its body, large mandibles Chewing/biting louse
Louse with a small head compared to body Sucking louse
Scientific name for Roundworms Nematodes
Welsh tapeworm, dog-to-sheep lifecycle Echinococcus granulosus
Most common tapeworm in dogs in UK. Intermediate host is the flea. Dipylidium caninum
Head of the tapeworm Scolex
Hooked mouth of the tapeworm Rostellum
Chain of tapeworm segments Strobila
Individual tapeworm segments Proglottid
Ascarid nematodes Toxocara spp, Toxascaris spp
Nematode where the adult worm lives in the hosts heart Heartworm
Infection of this canine nematode occurs through eating slugs and snails. Just known as heartworm in the UK. Angiostrongylus vasorum
Ascarid nematode, passed through placenta at 42 days of pregnancy and in mother's milk. Toxocara canis
Ascarid nematode passed through mother's milk. is NOT transmitted through placenta Toxocara cati
Small unicellular endoparasites Protozoa
Drug used to treat parasitic infection Antiparasitic
Drug used to treat internal parasitic infection Endoparasiticide
Drug used to treat worm infection Antihelmintic
Drug that acts against more than one group of worms Broad spectrum antihelmintic
Drug that kills the parasite Vermicide
Drug that paralyses the parasite before it is passed from the host Vermifuge
How often should adult dogs be wormed? 3 months broad spectrum wormer and every month for lungworm
How often should adult cats be wormed? Monthly if hunters, otherwise every 3 months
When should pregnant bitches be wormed? Daily from day 40 of pregnancy until 3 days after birth
How often should puppies and kittens be wormed? Every 2 weeks until 2 months of age, then once a month until 6 months old.
When must foals be wormed? 2-3 months old
What is the main group of endoparasites which is a concern in rabbits? Protazoa
Scientific name for chewing lice? Mallophaga
Scientific name for sucking lice? Anoplura
Infection with lice is know as? Pediculosis
Canine chewing louse, wide flat head Trichodectes canis
Feline chewing louse, large conical head Felicola subrostratus
Canine sucking louse Linognathus setosus
The common bluebottle Calliphora vomitoria
The invasion of living tissue by fly larvae Fly strike/myaisis
Scientific name for midges Culicoides spp
Allergic reaction in horses to Culicoides bites Sweet itch
Scientific name for bot flies Gasterophilus
Scientific name for flukes Trematodes
Potential complications in humans who ingest Toxocara canis Occular or visceral larval migrans. The larvae migrate to organs around the body and encapsulate themselves in the connective tissue. Can cause pain, blindness and CNS issues.
3 cestode species Dipylidium caninum, Taenia spp, Echinococcus spp
3 nematode species Toxacara spp, Angiostrongylus vasorum, Aelurostrongylus abstrusus
Canine lung worm that causes granulomatous nodules at the tracheal bifurcation Oslerus osleri
Tapeworm which causes hyatid cysts Echinicoccus spp
Northern hookworm. Can cause local dermatitis as larvae penetrate skin. Uncincaria stenocephala
Heartworm that is not found in the UK. Dirofilaria immitus
Heartworms inhabit this area in the host Pulmonary artery and right hand side of the heart
Created by: 18000305