B.1 Ectoparasites 1C Flashcards
What is sarcoptes scabiei ?
Scabies
What are the signs and symptoms of scabies ?
Burrows (ink testing)
Pruritus (intense itching)
Similar to impetigo or eczema
Skin biopsy where you can look for mites
Where are scabies usually found ?
Fingers
Buttocks
Breast
(Skin folds)
Where do scabies usually feed ?
Tissues and bodily fluids
is scabies contagious ?
Highly contagious
How are scabies spread ?
Direct:
- Touching
- Picking up under finger names
- Scratching
Indirect:
Keyboard, toilet, clothing, towels, bedding, furniture
How long can scabies survive away from the host ?
- 14 days but less than36 days in absence of human
How long do symptoms develop ?
3-4 weeks
Who is most risk of scabies ?
- children
- elderly people
- barracks and dormitories
- overcrowded situations
- young mothers
- Sexually transmitted
What are the pharmacological treatment for scabies ?
Use insecticides
disinfect clothing linen
Who do you treat?
Infected individual and their families and sexual partners
What is 1st line treatment ?
Lyclear
What can the itching from scabies be treated with ?
Sedating antihistamine
Crotamiton
Explain how secondary infection can be developed after infection with scabies ?
Immunity acquired which can limit secondary infection
