Journal article
Isolation of Airborne Oxacillin-Resistant Staphylococcus aureus from Culturable Air Samples of Urban Residences
Journal of occupational and environmental hygiene, v 8(2), pp 80-85
22 Jan 2011
PMID: 21253980
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Culturable single-stage impactor samples were collected onto nutrient agar in kitchen and bedroom areas of eight urban and four suburban residences in Philadelphia, Pennsylvania. Staphylococcus aureus colonies were identified by replica plating of the original impactor samples onto Chapman Stone medium followed by isolation of up to eight colonies for coagulase testing. Kirby-Bauer disk diffusion method was utilized to evaluate S. aureus resistance to both oxacillin and cefaclor. The median concentrations of total culturable bacteria observed in bedrooms and trash areas were 300 CFU/m3and 253 CFU/m3, respectively. Median culturable Staphylococcus spp. concentrations in bedrooms and trash areas were 142 CFU/m3 and 204 CFU/m3, respectively. A total of 148 individual S. aureus colonies were isolated and tested for antibiotic resistance. Cefaclor resistance was encountered among only 6 of the 148 (4%) colonies. Nearly one-quarter of all S. aureus isolates tested displayed resistance (n = 30) or intermediate resistance (n = 5) to oxacillin. Twenty-six percent (n = 20) of trash area isolates and 21% (n = 15) of bedroom isolates displayed resistance or intermediate resistance to oxacillin. The median difference in percent resistance between trash and bedroom areas was 10% (p = 0.1). Results suggest that there may be a systematic difference in bacterial populations between downtown and suburban residences. Storage of household waste and handling of food may contribute to presence of the organism in the air of residences.
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Details
- Title
- Isolation of Airborne Oxacillin-Resistant Staphylococcus aureus from Culturable Air Samples of Urban Residences
- Creators
- Hernando R Perez - Drexel UniversityRachel Johnson - Drexel UniversityPatrick L Gurian - Drexel UniversityShawn G Gibbs - University of Nebraska Medical CenterJennifer Taylor - Drexel UniversityIgor Burstyn - Drexel University
- Publication Details
- Journal of occupational and environmental hygiene, v 8(2), pp 80-85
- Publisher
- Taylor & Francis Group
- Number of pages
- 6
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering; Environmental and Occupational Health
- Web of Science ID
- WOS:000287114400005
- Scopus ID
- 2-s2.0-79955666402
- Other Identifier
- 991014877866604721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Environmental Sciences
- Public, Environmental & Occupational Health