a. Pediculosis = spread mainly by direct contact with an infested person or stray hairs containing nits, personal items such as wigs, combs, hairbrushes, hair rollers, towels, pillowcases and clothing, especially hats, sweaters, scarves, b. Nit cemented to hair shaft c. Nit = louse egg; don’t be so nit-picky! I feel lousy! d. Lice live entire life cycles on human body. They do not jump or fly e. Lice die within 24 hours after falling off the host f. Treatment of classrooms with insecticidal sprays is unnecessary g. Medical importance g.i. Feeds on BLOOD of humans g.ii. Saliva causes irritation to skin an leaves itchy, swollen red marks g.iii. Scratching may cause secondary infection g.iv. Can be spread by personal contact and contact with infected hats, coats, combs, brushes, bedding h. ID/detection h.i. Itchy swollen red marks on the scalp and back of the neck 2. Crab lice a. Lay eggs on coarse body hair particularly in pubic regions, peri-anal region, thighs, abdomen, and armpits b.
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