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    Pediculosis

    Pediculosis is a topic covered in the 5-Minute Emergency Consult.

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    Emergency Central

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    Basics

    Description

    • Infestation by organisms that live in close association with host
    • Bites are painless
    • Signs and symptoms result from host response to saliva and anticoagulant injected during feeding
    • Transmitted by direct contact and fomites (inanimate objects)
    • Head lice are transmitted by head-to-head contact:
      • Combs
      • Pillows
      • Hats
    • Head lice are more common in children and females
    • Pubic lice are transmitted by sexual contact
    • Obligate human parasites cannot survive away from hosts >7–10 days

    Etiology

    Infestation by:
    • Pediculus capitis (head louse):
      • Most common
      • All socioeconomic groups
    • Pediculus corporis (body louse):
      • Associated with poverty, poor hygiene, and overcrowding
      • Live in clothing and transfer to human host for feeding
      • Can live up to 30 days off of human
      • Related to bed bugs
    • Phthirus pubis (pubic or crab louse)

    Pediatric Considerations
    Pubic lice may also indicate sexual abuse in children

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    Citation

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    TY - ELEC T1 - Pediculosis ID - 307451 ED - Barkin,Adam Z, ED - Barkin,Roger M, ED - Hayden,Stephen R, ED - Rosen,Peter, ED - Schaider,Jeffrey J, ED - Shayne,Philip, ED - Wolfe,Richard E, BT - 5-Minute Emergency Consult UR - https://emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307451/all/Pediculosis PB - Lippincott Williams & Wilkins ET - 5 DB - Emergency Central DP - Unbound Medicine ER -