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Staphylococcus aureus is known to be associated with the chronicity and severity of atopic dermatitis (AD) through its production of superantigens. As many as 82% of adults with AD have S. aureus colonization in the anterior nares. Researchers prospectively examined the risk for AD following S. aureus nasal colonization in infants.
As part of a population-based, prospective cohort study, 1079 Dutch infants born between February 2003 and August 2005 had nasal swabs taken at ages 1.5 months, 6 months, and 14 months; parents completed questionnaires regarding their child's skin at ages 12 and 24 months. Based on questionnaire responses, researchers classified infants as having mild AD (rash with no other symptoms), moderate-to-severe AD (rash w…