What is impetigo?

Impetigo is a highly contagious bacterial infection that primarily affects the surface of the skin, often leading to the formation of clusters of small, blister-like lesions. Caused predominantly by Staphylococcus aureus or Streptococcus pyogenes, it commonly occurs in young children but can affect individuals of any age. The lesions can appear as red sores or blisters that can easily rupture, ooze fluid, and form a crust, which is characteristic of the infection.

The nature of impetigo as bacterial rather than viral or fungal is key to understanding its transmission and treatment. Unlike conditions caused by other pathogens, the bacterial origin of impetigo means that antibiotics are often necessary for effective treatment. This infectious nature means that careful hygiene and preventive measures are crucial in controlling its spread, particularly in environments where close contact is common, such as schools or daycare centers.