Parasitic skin infections Flashcards
what are lice
blood sucking irritating pests
how many types of lice (humans)
3 types that infest humans
- body
- pubic
- head
impact of lice
direcly impact WOL
- cause great concern and stress
psychological effect lice
children and adults experience anxiety when faced with infection
- social stigma surrounding infestation
effect on work/school
significant amount of absenteeism
what is the name of head lice
pediculus humanus capitis
most common cause of lice infestaion
school aged children > adults
girls > boys
what socioeconomic groups are effected
all socioeconomic groups
do lice pose a health hazard? (3)
non-life threatening
not a vector for disease
not a sign of poor hygiene
symptoms of lice
- main
- other
- secondary bac infection
MAIN SYMPTOM
- pruritus
OTHER SYMPTOMS
- itchy papules can develop
SBI
- secondary bacterial infection may occur as result of scratching
LEARN SLIDE 6 to diffentiate head v body v pubic
describe head lice
- length
- wings?
- legs
2-4mm long
no wings
six legs
how many at a time
infested children usually carry <20 mature head lice at a time
how long head lice live untreated
3-4 weeks if left untreated
where live in hair
close to scalp surface
-provides food warmth shelter and moisture
