Staph bacteria produce a toxin that causes impetigo to spread to nearby skin.

CNN: Impetigo

Children are commonly infected through a cut, scrape or insect bite, but they can also develop impetigo without having any notable damage to the skin.

CNN: Impetigo

You're exposed to the bacteria that cause impetigo when you come into contact with the sores of someone who's infected or with items they've touched, such as clothing, bed linen, towels and even toys.

CNN: Impetigo