Sarcoptes Scabiei

Question 1

suborder

Answer 1

astigmata

Question 2

common name

Answer 2

sarcoptic mange mite, itch mite, scabies mite

Question 3

host

Answer 3

all domestic animals and humans

Question 4

is this host specific?

Answer 4

LARGELY host specific

Question 5

is this parasite contagious?

Answer 5

highly contagious

Question 6

is sarcoptes scabiei zoonotic?

Answer 6

yes!

Question 7

which mite is similar to the sarcoptes, but in cats?

Answer 7

notoedres cati

Question 8

identification:

Answer 8

round
short legs
suckers on unsegmented stalks

Question 9

what pair of legs does the female have suckers on?

Answer 9

1 and 2

Question 10

what pair of legs does the male have suckers on?

Answer 10

1, 2, and 4

Question 11

life cycle

Answer 11

female creates burrow in upper layer of epidermis
eggs laid in tunnels
hatch in 3-5 days to larvae that crawl on skin surface
larvae burrow and form “molting pockets”
nymphs and adults develop in pockets
adult emerges and seeks female

Question 12

all stages ____ in the epidermis, resurface, and burrow again

Answer 12

tunnel

Question 13

site of infection

Answer 13

skin

Question 14

pathogenesis

Answer 14

erythema, scale and crust formation

VERY PURITIC

Question 15

clinical signs

Answer 15

extensive lesions of follicular papules
lots of scratching
dried serum and excorations

Question 16

diagnosis

Answer 16

skin scaping

Question 17

is it easy or difficult to find the mites?

Answer 17

difficult even in dogs with advanced lesions

Question 18

treatment

Answer 18

MCLs

subcutaneous ivermectin

Question 19

common starting places on infection on the skin?

Answer 19

lateral elbow, pinna of the ear

Question 20

treatment of mites cure the ___ they infest

Answer 20

humans

Question 21

how do dogs get sarcoptic mange?

Answer 21

direct contact- very contagious