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raimond 28-01-2013
raimond - University of Cambridge
They should all be sterile. But i read a article about how some doctors and helpers don't wash there hands at certain hospitals. All equipment shall be clean and not used again until washed after begin in someone elses body. So yes they are all some what sterile .
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shanee 25-04-2013
shanee - National Institute of Industrial Engineering
"Uninspired (or maybe ‘sterile’) strategy is most notably regarding decreasing doable types of illness (nosocomial contagion = disease bought while hospitalized). "
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