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The hospital environment harbors bacteria that may cause health care-associated infections. Microorganisms, such as multiresistant bacteria, can spread around the patient's inanimate environment. Some recently introduced biodecontamination approaches in hospitals have significant limitations due to the toxic nature of the gases and the length of time required for aeration. This study evaluated the in vitro use of cold air plasma as an efficient alternative to traditional methods of biodecontamination of hospital surfaces. Cultures of methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant enterococci (VRE), extended-spectrum-β-lactamase (ESBL)-producing Escherichia coli, and Acinetobacter baumannii were applied to different materials similar to those found in the hospital environment. Artificially contaminated sections of marmoleum, mattress, polypropylene, powder-coated mild steel, and stainless steel were then exposed to a cold air pressure plasma single jet for 30 s, 60 s, and 90 s, operating at approximately 25 W and 12 liters/min flow rate. Direct plasma exposure successfully reduced the bacterial load by log 3 for MRSA, log 2.7 for VRE, log 2 for ESBL-producing E. coli, and log 1.7 for A. baumannii. The present report confirms the efficient antibacterial activity of a cold air plasma single-jet plume on nosocomial bacterially contaminated surfaces over a short period of time and highlights its potential for routine biodecontamination in the clinical environment.

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Developing quality relationships is recognised as an active ingredient for effective interventions with young people in care. Essentially, care staff has the opportunity and capacity to positively influence the young person's experiences in care, through the positive relationships they form. This paper presents selectively on the findings of two separate but related qualitative Irish studies exploring relationship-based approaches in residential child care practice, from the perspectives of both residential child care workers and young care leavers. Thirty-two professionals and four care leavers participated in either focus group or individual interviews. The findings are integrated in this paper with the wider literature on young people leaving care, with the aim of identifying core knowledge that is needed by service providers who are tasked with the support of young people making the transition out of care and towards independent living. In this paper we attempt to identify the knowledge base on relationship-building which is needed by care staff in order to carry out their role. It is argued that an explicit knowledge base is overdue now that the complex needs of young people in care are increasingly visible through advances in research and more recently the emerging literature concerning the personal testimonies of care graduates.