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What is the taxonomy for mites
Class:
Order:
Suborder: (3)
- Arachnida
- Acarina
- Mesostigmata
- Astigmata
- Prostigmata
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term for breathing pore
stigmata
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What is the suborder specific Family for the mites of birds and non-companion beast
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How many species of mites are there world wide
30,000
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How many species of mosquitoes are there
3,000
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How many species of mites are recognized as being the cause of health related problems in man and animals
250
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What 3 mites are under the family Railletidae going by the descriptions below
harmless in ear of cattle
Lungs of monkey
nasal and paranasal sinuses of dogs
most common mite of birds
Rodents, snakes, and birds
- Raillietia auris
- Pneumonyssus simicola
- Pneumonyssus caninum
- Dermanyssus gallinae
- Ornithonyssus species
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This mite can survive for extended periods of time in birds nest and chicken houses. Said to migrate into houses and feed on humans
Dermanysusus gallinae
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This mite is found on rodents, snakes, and birds and if left on the host can cause zoonotic issues
Ornithonyssus species
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What two things are need for a disease to be considered a 'reportable disease'
- transmissible for animal to man and from man to animal
- effect the economy
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this suborder has no traditional respiratory pore and includes mange mites, clasping hair mites, and grain mites
Astigmata
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All mites are considered mange mites from what two families
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What are two ways that mange mites are identified
- host and distribution of lesions
- characteristic of jointed or unjointed legs
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What are the 3 layers of tissue that female sarcoptic mites burrow into
- stratum corneum
- stratum lucidum
- upper malpighian
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What is the ratio for dogs that will test positive for both sarcoptic and demodectic mange
1 in 50
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What are the family for sarcoptes mites and the genus's based on theses species
dog
cat
- Sarcoptidae
- Sarcptes
- Notoedres
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Where are the 2 main lesion locations for Sarcoptes in dogs, swine, horses, cattle and man
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what is considered the definitive host for Sarcoptes
dog
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Where are the 3 main lesion locations for Notoedres in cats, rats, rabbits, and man
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the dog is considered the definitive host for Sarcoptes but what 4 other species can be infected as well
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the cat is considered the definitive host for Notodedres but what 3 other species can be infected as well
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This family is under the Astigmata, what is the family and what are the genus's based on the species
sheep, cattle, horses and rabbits
horse, cattle, sheep and goats
dogs, cats and pocket pets
- Psoroptidae
- Psoroptes
- Choriptes
- Otodectes
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out of all the genus's for Psoroptidae with one is considered reportable
psoroptes
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what is considered the most common mage mite of ominivores and carnivores
Otodectes cynotis
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How many days does it take for Otodectes cynotis eggs to hatch
- 21 days (3 weeks)
- this is why we treat once a week for 3 weeks
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What is the drug used to treat for Otodectes cynotis, this only has to be administered once as an otic suspension
Acarexx (0.01% Ivermectin)
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What is the taxonomy for Demodex
Suborder:
Superfamily:
Family:
- Prostigmata
- Chyletoidea
- Demodicidae
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What are the demodex mites for
Dogs
Cats (2)
- Demodex canis
- Demodix cati, Demodex gatoi
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What are the two forms of Demodicosis
- localized demoidicosis
- generalized demodicosis
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Demodecosis lesions found in one area
localized demodicosis
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Demodecosis lesions found all over the body
generalized demodicosis
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What are the two ages and terms for them, that Demodecosis is commonly seen in
- Juvenile onset demodecosis (3 - 12 months)
- Adult onset demodecosis (2 - 4 years)
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What is the cause of Sarcoptic mange
mite
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What is the cause of demodecosis
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what is the percent range for animals with generalized demodicosis under one year that will spontaneously recover without intervention
30 - 50 %
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what is the nickname for demodex mange
red mange
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what is the bacteria often seen with demodecosis infections
staphylococcus bacteria
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what are the two causes for hair loss on/around the face
- Ringworm (Microsporum canis)
- Demodex
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What type of drugs are considered contraindicated for the treatment of Demodecosis
Corticosteroids
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In a study what where 5 causes and their percentage rates for associations for demodecosis in adults
- 32% corticosteroid administration
- 20% hypothyroidism
- 12 % cytotoxic drugs (cancer treatment drugs)
- 8 % hyperadrenocortism ( Cusing's syndrome)
- Spleenectomy
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Demodex is considered this kind of issue in regards to parents and offspring
inherited problem
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What are the 4 developmental stages for Demodex canis and how many legs do they have
- egg
- larvae (3 legs)
- pupae ( 4 legs)
- adult ( 4 legs)
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What is the treatment of choice for Demodicosis
Mitaban (Amitraz) made by Zoetis
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What are 4 drugs used to treat demodicosis (proprietary name, non proprietary name, made by)
- Mitaban (Amitraz) Zoetis
- Interceptor (Milbemycin oxime) Novartis
- Ivomec 1% (Ivermectin) Merial
- Program (Lufenuron) Novartis
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what are 7 reasons that demodicosis treatments fail or relapse
- premature suspension of treatment
- failure to treat bacterial skin infections
- stress with environment and family
- heat cycle
- Iatrogenically induced glucocoritcoids/corticosteriodis
- Underlying concurrent disease
- Idiopathic problems with the patient
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What was an early treatment for Demodicosis that could only be placed on 1/3 of the dog at a time
- Scotts solution
- developed by Dr. Danny Scott
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What where the two things that made up 'Scott's Solution'
- 5 parts propylene glycol (stimulate immune system)
- 1 part ectoral (organophospahte)
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How many species of demodex does the cat have
- D. cati
- D. gatoi
- the last one doesn't have a name
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What are the genus and species of demodex in these animals
cattle
sheep
goats
swine
horses
- Demodex bovis - pus nodules on the head
- Demodex ovis - lesions on the eyelids
- Demodex caprae - lesions/pustules all over body
- Demodex phyllodides - around eyes and snout
- Demodex equi - hair loss starts on the head
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This family of mite means 'Big claw'
Chyletiellidae
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What are the three type belonging to the Family Cheyletiellidae
dogs
cats
domestic rabbits
- Cheyletiella yasguri
- Cheyletiella blakei
- Cheyletiella parasitivorax
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What mite has the nick name 'Walking dandruff'
Cheyletiella yasguri
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What mite has the nickname 'sheep itch mite'
Psorobis ovis
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What mite has the nickname 'dog itch mite'
Sarcoptes scabei
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what mite has the nickname 'cat itch mite'
Notoedres cati
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What are 5 things that cause itching in the ear
- 'chiggers' Trombiculid larvae
- Malassezia yeast
- bacteria
- Obtobius megnini 'spinous ear tick'
- Otodectes cynotis 'ear mites'
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Both the families Saroptidae and Psoroptidae are considered the what family's
Scabies families
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What family does 'chiggers' belong under
Trombiculidae
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What is an infection of chiggers called
Trombiculiasis
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What is the actual cause of trombiculiasis and is actually known as a 'chigger'
Trombiculid larvae
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