Mouth infection icon, Infected mouth icon, Mouth blue vector icon. Mouth infections are a common health issue, and can range from mild to severe. To alert people to the possibility of infection, icons can be used to represent mouth infections and serve as a warning sign. This article will discuss the use of mouth infection icons, infected mouth icons, and mouth vector icons to help spread awareness of potential infections. Mouth vector icons are especially useful as they provide a visual representation of an infection and may help to quickly identify an issue.