Mitra Sohini S, Pachpute Samir R
Department of Microbiology, MGM Medical College and Hospital, MGM Institute of Health Sciences, Navi Mumbai, Maharashtra, India.
J Family Med Prim Care. 2023 Dec;12(12):3262-3265. doi: 10.4103/jfmpc.jfmpc_741_23. Epub 2023 Dec 21.
Nosocomial infections have been acknowledged as a significant pathogen responsible for human illness due to the rise in the incidence of these infections that are mainly caused by resistant strains. As a result, it is important to prevent nosocomial infections. Therefore, in the epidemiology and pathogenesis of infection bacterial carriage appears to be of great importance and in healthy persons, three patterns of carriage are observed over time. The common ecological niches of microorganisms are the anterior nares and hands; hence, the present study aims to evaluate the surveillance of bacterial carriage from the hands and noses of healthcare workers that involve doctors, nurses, and housekeeping staffs and patients involving pregnant women or mothers.
An observational prospective study was conducted for 1.5 years in which collection of swabs from both the hands and nose were taken and inoculated on mannitol salt agar, blood agar, and MacConkey agar and incubated at 37°C for 24 h following which biochemical reactions were performed from isolates and 160 nasal swabs and hand swabs were studied for bacterial growth.
The percentages of bacterial growth in the hands of mothers, doctors, housekeeping staff, and nurses were 17.5, 12.5, 52.5, and 25%, respectively, and in the nose were 7.5, 5, 32.5, and 12.5%, respectively. Total bacterial carriage in hand and nose swabs were 26.87 and 14.37%, respectively.
Methicillin-resistant was the most common microorganism isolated and as a result to prevent its spread along with other nosocomial microorganisms, appropriate precautions should be taken as the spreading of these organisms can lead to drug resistance strains.
由于医院感染的发病率上升,且主要由耐药菌株引起,医院感染已被公认为导致人类疾病的重要病原体。因此,预防医院感染很重要。所以,在感染的流行病学和发病机制中,细菌携带似乎至关重要,随着时间推移,在健康人群中观察到三种携带模式。微生物常见的生态位是前鼻孔和手部;因此,本研究旨在评估对医护人员(包括医生、护士和保洁人员)以及患者(包括孕妇或母亲)的手部和鼻部细菌携带情况的监测。
进行了一项为期1.5年的观察性前瞻性研究,采集手部和鼻部的拭子,接种在甘露醇盐琼脂、血琼脂和麦康凯琼脂上,于37°C孵育24小时,之后对分离株进行生化反应,并对160份鼻拭子和手拭子进行细菌生长研究。
母亲、医生、保洁人员和护士手部的细菌生长百分比分别为17.5%、12.5%、52.5%和25%,鼻部的细菌生长百分比分别为7.5%、5%、32.5%和12.5%。手部和鼻部拭子的总细菌携带率分别为26.87%和14.37%。
耐甲氧西林[细菌名称未完整]是最常分离出的微生物,因此,为防止其与其他医院微生物传播,应采取适当预防措施,因为这些微生物的传播会导致耐药菌株产生。