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Flashcards in Demodex spp Deck (18):
1

common name

demodectic mange mite

2

suborder

prostigmata

3

hosts

dogs

4

feline version of this parasite

demodex cati- rare

5

identification

elongate tapering body
4 pairs of stumpy legs on anterior

6

size of adult

400 micrometers

7

life cycles

adults in follicles
females lay eggs
larvae and nymphs at mouth of follicle

8

where is this parasite found? (site of infection)

hair follicles and sebaceous glands

9

transmission to new born pups occurs via ____ in the first 2-3 days postpartum

direct contact

10

pathogenesis

localized demodecosis
alopecia
erythema

11

is the presence of small numbers of mites normal?

yes

12

what happens with generalized demodicosis?

5 or more areas of localized disease. the hair becomes sparse and skin becomes dry causing "red mange". concomitant staphylococcal pyoderma develops. pustules break open and ooze. difficult and often impossible to cure

13

is localized demodicosis deadly?

no, clinical recovery is excellent

14

diagnosis

deep skin scrapings
hair loss

15

treatment

amitraz

16

can localized ever become generalized demodicosis?

yes, it can progress

17

does presents of the mites indicate disease?

no, because mites are normal inhabitants

18

how do we kill all mites?

must preform many recheck scrapings
treat until 2 subsequent negative skin scrapes in a row
monitor for 12 months