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n. a superficial bacterial infection of the skin. Nonbullous impetigo is caused by Staphylococcus aureus, Streptococcus species, or both organisms; it mainly affects young children and is highly contagious, with yellowish-brown crusting. Bullous impetigo is caused by Staph. aureus; it is characterized by blisters, is less contagious than the nonbullous form, and occurs at any age. Treatment of impetigo is with topical or systemic antibiotics.

Subjects: Medicine and Health.

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