Mary-Claire Roghmann1, Alison D Lydecker2, Patricia Langenberg2, Emmanuel F Mongodin3, J Kristie Johnson4. 1. Geriatrics Research Education and Clinical Center, VA Maryland Health Care System, Baltimore, MD, 21201; Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, 21201. Electronic address: mroghman@epi.umaryland.edu. 2. Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, 21201. 3. Department of Microbiology and Immunology and Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, 21201. 4. Department of Pathology, University of Maryland School of Medicine, Baltimore, MD, 21201.
Abstract
OBJECTIVE: To compare the presence of Staphylococcus aureus and pathogenic Gram-negative rods (GNR) in the anterior nares, posterior pharynx and three skin sites in community-based adults and nursing home-based adults before and after treatment with nasal mupirocin and topical chlorhexidine. METHODS: S. aureus-colonized adults were recruited from the community (n=26) and from nursing homes (n=8). Eligible participants were cultured for S. aureus and GNR during two study visits and then received intranasal mupirocin and topical chlorhexidine for 5days, with a 2-month follow-up period. RESULTS: After decolonization, we found sustained decreases of S. aureus colonization in nose, throat and skin sites over 4-8weeks in both populations. Intranasal mupirocin did not increase GNR colonization in nose or throat. Chlorhexidine did not decrease GNR colonization in skin sites. CONCLUSIONS: Decolonization with mupirocin and chlorhexidine leads to a sustained effect on S. aureus colonization without affecting GNR colonization.
OBJECTIVE: To compare the presence of Staphylococcus aureus and pathogenic Gram-negative rods (GNR) in the anterior nares, posterior pharynx and three skin sites in community-based adults and nursing home-based adults before and after treatment with nasal mupirocin and topical chlorhexidine. METHODS:S. aureus-colonized adults were recruited from the community (n=26) and from nursing homes (n=8). Eligible participants were cultured for S. aureus and GNR during two study visits and then received intranasal mupirocin and topical chlorhexidine for 5days, with a 2-month follow-up period. RESULTS: After decolonization, we found sustained decreases of S. aureus colonization in nose, throat and skin sites over 4-8weeks in both populations. Intranasal mupirocin did not increase GNR colonization in nose or throat. Chlorhexidine did not decrease GNR colonization in skin sites. CONCLUSIONS: Decolonization with mupirocin and chlorhexidine leads to a sustained effect on S. aureus colonization without affecting GNR colonization.
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