external parastie 3
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Mange mites of the Families __ and __ collectively cause skin associated problems known as Scabies
Psoroptidae and Sarcoptidae
An important characteristic for identification of a number of common mites is length and segmentation of the __ (__) connecting a sucker to the leg.
Female mites create burrows in the __, __, and __ layers of the skin
- stratum corneum
- stratum lucidium
What are related to the Family Sarcoptidae?
- Sarcoptes- dog (swine, horse, cattle and man)
- Notoedres- cat (rats, rabbits and man)
What are apart of the Family Psoroptidae?
- Psoroptes- sheep, cattle and horses
- Chorioptes- horse( cattle, sheep and goats)
- Otodectes- dogs, cats, and pocket pets
What are the two "eyes" on the posterior end of Choriptes?
__ is a psoroptic mite of the dog and other canids, as well as cats.
__ is the most common mange mite of ominivores and carnivores
What is the developmental time for Otodectes cynotis, and must continue treatment for this amount of time to insure all developmental stages have been elliminated?
(family) -- live in the skin and in glandular ducts
__ found in the canine, are among the easiest to expose as they live on the surface of the skin
What are two forms fo demodicosis?
- localized demodicosis
- generalize demodicosis
What are some other classifications of demodicosis?
- juvenile onset 3-12 months (pediatric, your immune system is suppressed)
- adult onset 2-4 years
Demodiocsis (what 2 things)
- Suppressed immunesystem
__ % with generalized demodicosis under one year will recover spontaneously without intervention
What is the nickname for demodicosis?
What is the concurrent bacteria seen with demodex?
What is the cause of Demodex canis and cati?
- Suppressed immune system
Where do lesions for demodex typically start?
on the face
What drug is contraindicated for demodex?
What is the only FDA approved treatment for demodicosis?
Amitraz (Mitaban) by the upjohn company
What are 4 treatments for demodicosis
- 1. Amitraz (mitaban)
- 2. Milbemycin oxime (interceptor)
- 3. Ivermectin (ivomec 1%)
- 4. Lufenuron (Program)
in the early 70's Dr. Danny Scott of Cornell University mixed a solution of 5 parts __ with 1 part __
- 5 parts- propylene glycol (a primitive oil based antibiotic)
- 1 part- ectoral- (organophosphate)
What are some other species of demodex?
- Demodex bovis
- Demodex ovis
- Demodex caprae
- Demodex phyllodides
- Demodex equi
What are the three primarie Cheyletiellidae?
- Cheyletiella yasguri-- dogs "Walking Dandruff"
- Cheyletiella blakei- cats
- Cheyletiella parasitivorax - domestic rabbits
What is the nickname for the family Cheyletiellidae?
__ is known as the "sheep itch mite"
__ is known as the "dog itch mite"
__ is known as "cat itch mite"
__ are known as "triggers" are are the pathogenic membres of this developmental stage
chiggers are __ legged larvae (looking much like demodectic mite), tiny and bright red
six legged larvae
What are 5 things that can be seen inside an itchy ear?
- Otodectes cynotis
- Trombiculid larvae
What is the etiology for lymes disease?
What is the intermediate host for Barreilia burgdorferi?
What is the nickname for Amblyomma americanum?
Lone Star Tick
What is the nickname for Amblyomma maculatum?
Gulf Coast Tick
What is the nickname for Dermacentor variabilis?
American Dog Tick/Wood Tick
What is the nickname for Rhipicephalus sanquinius?
Brown Dog Tick
What is the nickname for Boophilus annulatus?
Texas Cattle Fever tick
What is the nickname for Haemaphysalia leporispalustris?
Continental Rabbit Tick
What is the nickname for the soft tick Argas persicus?
What is the nickname for the soft tick Otobius megnini?
Spinous Ear Tick
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