Final answer:
Impetigo is a contagious skin infection caused by bacteria, commonly found in children. It appears as vesicles, pustules, or bullae around the nose and mouth. It can be diagnosed through its characteristic appearance and treated with antibiotics.
Step-by-step explanation:
Impetigo is a contagious skin infection caused by bacteria. It is particularly common in children and often appears as vesicles, pustules, or bullae around the nose and mouth. Impetigo can be caused by Staphylococcus aureus, Streptococcus pyogenes, or a combination of both. It can be diagnosed through observation of its characteristic appearance, and it is typically treated with topical or oral antibiotics.