Staphylococcus aureus contamination rate on environmental surfaces and hands of staff in ICU and NICU ward of Rohani hospital in Babol, Iran
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Introduction: This study surveyed the frequency of Staphylococcus aureus contamination on different surfaces in the ICUs in central Iran. Contamination of the environmental surfaces is a cause of nosocomial infection. The survey of S. aureus contamination in ICU and NICU was the purpose of this study. Materials and Methods : Samples were taken from different surfaces of ICUs and NICU. Antibiotic resistance of isolated Staphylococcus aureus, SCCmec typing patterns, and abundance of mecA, PVL, TSST-1 genes were investigated. Results: 63.9% of positive cultures were detected as Staphylococcaceae family. S . aureus was identified in 6.6% of the total samples. Most of these isolates were resistant to cefazolin (93.9%), erythromycin (69.7%) and levofloxacin (63.6%). PVL and mecA genes accounted for 21.2% and 24.2%, respectively. SCCmec type I and HA-MRSA were seen in 87.5% of isolates, and just 22.5% of isolates had SCCmec IV and CA-MRSA Conclusion : Contamination on surfaces in the ICUs belonging to non- Staphylococcus aureus was at a high level. The high prevalence of SCCmec type I demonstrated that the origin of bacterial surface contamination in hospitals is patients infected by MRSA or MRSA carriers.
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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License.