Curtis Donskey and colleagues from the Cleveland Veterans Affairs Medical Center, Ohio, US, collected stool samples from inpatients and analysed these for S. aureus. The researchers also took samples from the patients’ nostrils, armpits and groins, as well as surrounding surfaces such as bed rails and bedside tables using a moist cotton swab. To determine whether these bacteria would be transferred to the researchers’ hands they bravely touched each of the skin and environmental sites with one hand previously disinfected with an alcohol hand rub. Handprints in agar jelly before and after testing were used to determine the presence of bacterial transfer.
The study’s most important finding was that patients harbouring S. aureus in both their intestines and noses were significantly more likely than those with this bacterium in their nostrils alone to have positive skin cultures. There was also a statistically non-significant trend toward contaminating surrounding surfaces and bacterial transfer to the investigator’s hands.
Cultures from environmental surfaces yielded an average of 12.7 colonies with a range of 1 to 80, while cultures from armpits and groins yielded colonies of bacteria “too numerous to count.” Hand cultures after contact with environmental and skin surfaces yielded an average of 15.3 colonies with a range of 1 to 80. Most of the patients colonized with S. aureus had the MRSA (Methicillin-resistant Staphylococcus aureus) strain, which is unaffected by treatment with certain antibiotics.
“Because staphylococci on skin may contaminate devices or wounds and be acquired on hands, our data provide support for the hypothesis that colonization of the intestinal tract may facilitate S. aureus infections and nosocomial transmission,” Donskey says.
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Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
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In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
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By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
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COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...
'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.
Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...
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