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Key Points Impetigo is a highly contagious superficial cutaneous infection by Staphylococcus aureus and/or Streptococcus pyogenes. Effective treatment is directed at both organisms. Secondary impetigo, or impetiginization, may complicate preexisting dermatoses, such as atopic dermatitis or insect bites. Honey-colored crusting or annular erosions with minimal crusting is the typical morphology for impetigo contagiosum; bullous lesions, […]