Impetigo commonly affects the nose, mouth, lips, arms, legs, and diaper area. Impetigo causes red sores that quickly rupture, ooze for a few days, and form a yellowish (or “honey-colored”) crust. Impetigo sores can spread to other exposed areas through touch, clothing, and towels.
The most common places of impetigo infections include Oceania, Australia, and New Zealand. In many cases, impetigo is seasonal, as the strep and staph bacteria responsible for impetigo skin infections tend to thrive in warm, wet, and humid conditions.
According to the CDC, “impetigo is more common in areas with hot, humid summers and mild winters (subtropics), or wet and dry seasons (tropics).” However, impetigo can occur anywhere.
Impetigo also spreads where groups of people gather. For example, if someone has impetigo, it often spreads to other people in the same household. Crowded conditions, such as elementary schools and daycares, can increase the risk of impetigo.