Parasitology Flashcards
Acanthocheilonema reconditum
Microfilariae in periferal blood, other DDX heartworm
Capillaria ova
cause cough. look similar to Trichuris eggs but are smaller and have asymmetric terminal plugs. Most cases of Capillaria are asymptomatic but chronic cough can be seen.
Cheyletiella
large mites that affect cats, dog, rabbits, and humans. This mite is highly contagious The mites live in the stratum corneum and, unlike Sarcoptes, these mites do not burrow down. This mite can be found with acetate tape impressions, fecal examination (identify the eggs), or using a flea comb. Lime sulfur dips or flea products can be used for treatment.
Culicoides
genus of biting midges in the family Ceratopogonidae
Demodex
De. canis and cati live in hair follicles and require a skin scrape to be found. Canis only affects dogs and cati is not contagious. D. gatoi is contagious and does not burrow so can be found on acetate tape since it lives in the stratum corneum.
Dermacenter
Tick associated with tick paralysis in the US.
dipylidium caninum
common tapeworm of cats and dogs spread by fleas, need to treat for both worms and fleas
Dirofilaria immitis
heartworm
Giardia canis
Can find on direct fecal smear, cysts can be found on fecal flotation, organism can be detected by FA and ELISA, cannot find cysts on fecal sedimentation.
Habronema
Granulomatour dermal lesions
Haematobia
the horn fly, biting fly
Ochercerca
associated with fistulous withers, poll evil, dermatitis, and uveitis in horses
Otodectes
ear mite; can treat with otic solutions of Milbemycin or Ivermectin, Selamectin or Moxidectin for prevention, Thiabendazole for mites and yeast if used for >10 days.
Pneumonyassoides caninum
Nasal mite that can result in facial pruritis. Dogs are mainly affected. Diagnosis is by mite identification grossly with rhinoscopy or in nasal flushes.
Sarcoptes
Very difficult to find, superficial skin scrape would be needed since this mite burrows into the stratum corneum.
