Sommerstein, R. et al.Journal of Hospital Infection. Published online: 10 May 2016
Heater‒cooler units (HCUs) have received considerable attention from an infection prevention viewpoint in the last two years, as their water reservoir has been linked to healthcare-associated outbreaks. Ten cases of Mycobacterium chimaera infection associated with contaminated HCUs have been described in the literature and the suspected transmission pathway by air was recently substantiated.2,3 Götting et al. now report on the difficulties of physically separating the HCU in order to divert contaminated HCU exhaust air from the surgical field and how they relied on non-fermenters as surrogate micro-organism ‒ despite their unknown significance.
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