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Pediculosis and Scabies

Source: www.aafp.org
Topic: Scabies
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Sort Desciption: Pediculosis and scabies are closely related skin conditions caused by arthropods. Although these conditions typically cause severe itching, they generally are benign. ...

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Pediculosis and scabies are closely related skin conditions caused by arthropods. Although these conditions typically cause severe itching, they generally are benign. Pediculosis and scabies have similar treatments.

The three lice species that infest humans are Pediculus humanus capitisâ head louse (Figure 1, left), Phthirus pubisâ crab or pubic louse (Figure 1, right), and Pediculus humanus corpusâ body louse. All three insects are obligate human parasites. Contrary to popular belief, these insects do not hop, jump, or fly. Rather, they are transmitted by person-toperson contact.

Despite the introduction of new treatments, the frequency of lice infestation may be increasing. One explanation may be the development of resistance to current treatments. Fortunately, head and pubic lice do not transmit systemic disease. Hence, treatment is directed at relieving symptoms and preventing reinfestation and transmission.

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