A contagious parasitic infection caused by ectoparasitic blood-feeding insects (lice)
Two species of lice infest humans:
Pediculus humanus has two subspecies: the head louse (var. capi...
Pruritus is common, often worse at night.
Often associated with “outbreak” in school settings
Investigate contacts of infected individuals.
Diagnosis is confirmed by visuali...
Head lice: Clean items that have been in contact with the head of the infected individual within 48 hours.
Wash all bedding, towels, clothes, headgear, combs, brushes, and hai...
Cole SW, Lundquist LM. Spinosad for treatment of head lice infestation. Ann Pharmacother. 2011;45(7–8):954–959. [View Abstract on OvidMedline]
Sanchezruiz WL, Nuzum DS, Kouzi S...
B85.0 Pediculosis due to Pediculus humanus capitis
B85.1 Pediculosis due to Pediculus humanus corporis
B85.2 Pediculosis, unspecified
B85.4 Mixed pediculosis and phthiriasis
School-based no-nit policies are not necessary because empty nits may remain on hair shafts for months after successful eradication.
Improper product application is a common cause of tr...
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