Impetigo
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A child is brought in with yellow crusty lesions on his face. The doctor suspects Impetigo. A sample is sent to a researcher to determine the identity of the causative bacteria. Impetigo is a topical infection of the skin. The most common site s of infection are the face (particularly around the nose and mouth) and the legs, it is possible for lesions to occur in other locations. Impetigo occurs most commonly in children. It is spread easily through close contact, especially among siblings, daycare centers, and schools. Crowding, poor hygiene, contact sports, and neglected minor skin trauma all contribute to the spread. Impetigo commonly occurs during warmer months and is more common in semitropical or tropical climates than in other cooler regions.
Impetigo is caused by bacteria, group A streptococci and occasionally by other streptococci and sometimes by staphylococcus aureus...