What characterizes impetigo?

Impetigo is characterized as a bacterial inflammatory skin disease, primarily caused by the bacteria Staphylococcus aureus or Streptococcus pyogenes. It typically manifests as red sores or blisters that can rupture, ooze, and form a honey-colored crust. This condition is most commonly seen in young children but can affect individuals of any age. The infection is highly contagious and spreads through direct contact or by sharing items such as towels or clothing.

Understanding that impetigo specifically involves bacterial pathogens sets it apart from other skin conditions caused by viruses, fungi, or allergic reactions. For instance, viral skin infections would involve different symptoms and virulence factors, while fungal infections would require antifungal treatments. Allergic reactions generally present with different characteristics, such as redness and swelling due to exposure to allergens, rather than the specific bacterial infection related to impetigo.