Salimi Elaheh, Pakbaz Zahra, Pourmand Mohammad Reza, Avakh Majelan Payman, Dehbashi Sanaz
Urology Research Center, Tehran University of Medical Sciences, Tehran, Iran.
Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Acta Med Iran. 2016 May;54(5):330-3.
Coagulase-negative staphylococci (CoNS) have been identified as a major cause of nosocomial infections. Nasal carriage of CoNS in nurses and physicians is known to be an important risk factor for potential hospital infections. This study was carried out to investigate the prevalence of nasal carriage of uncommon coagulase-negative staphylococci among nurse and physician staffs of Tehran University Hospitals. A total of 116 CoNS were isolated from anterior nares of the study participants working in different wards of the hospitals. Thirteen uncommon CoNS were identified using phenotypic and biochemical methods, were subsequently confirmed by API kits. Staphylococcus xylosus, Staphylococcus haemolyticus, and Staphylococcus capitis species accounted for 53.85%, 30.77%, and 15.38% from the isolates, respectively. Six isolates (46.15%) were found to be resistant to methicillin. In conclusion, screening of healthcare workers for uncommon CoNS colonization along with identification and testing for susceptibility of cultured isolates is of paramount importance in strengthening effective nosocomial infection control and prevention measures.
凝固酶阴性葡萄球菌（CoNS）已被确认为医院感染的主要原因。护士和医生鼻腔携带CoNS是潜在医院感染的重要危险因素。本研究旨在调查德黑兰大学医院护士和医务人员中不常见凝固酶阴性葡萄球菌的鼻腔携带率。从在医院不同病房工作的研究参与者的前鼻孔共分离出116株CoNS。使用表型和生化方法鉴定出13株不常见的CoNS，随后通过API试剂盒进行确认。木糖葡萄球菌、溶血葡萄球菌和头葡萄球菌分别占分离株的53.85%、30.77%和15.38%。发现6株分离株（46.15%）对甲氧西林耐药。总之，筛查医护人员是否存在不常见的CoNS定植，并对培养的分离株进行鉴定和药敏测试，对于加强有效的医院感染控制和预防措施至关重要。
