Cheyletiella yasguri (2) Flashcards
1
Q
What is the common name?
A
Walking dandruff
2
Q
What are the hosts?
A
Dogs
Cats
Rabbits
Humans
3
Q
How do you identify?
A
Up to 400 micro m
The body has a waist
Pretarsi/pedicels
- Large palpal claws
4
Q
Explain the life cycle
A
Transmission occurs by direct contact or fomites
Egg -> Adults - 2 weeks
5
Q
What are the sites of infestation?
A
Back
Head
Fur
Hair
6
Q
Describe the Pathogenesis
A
Exfoliating dermatitis
- Many skin scales are shed - Powdery/mealy appearance
Walking dandruff - activity of the mites which stir exfoliative debris
Not highly exfoliative
7
Q
How do you diagnose?
A
Dandruff
Adhesive tape or scotch tape swab
Superficial skin scrapings
Combing hair/examining against dark background looking for white dots (mites) moving around
8
Q
How do you treat?
A
Acaricidal treatments
9
Q
What is important about Cheyletiella yasguri?
A
It is ZOONOTIC!
- Readily transferred to humans even on short contact - Irritation - Pruritis - Resolve when animal source treated
