Updates from the Healthcare Infection Society’s 2018 conference

We enjoyed the recent Healthcare Infection Society’s 2018 conference in Liverpool, and thought we’d share a few highlights. You can view all of the submitted abstracts here and the invited abstracts here. The role of the environment in the transmission of HCAI was a strong theme throughout the conference, with key speakers discussing the relative importance of contaminated…

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Extensive environmental contamination with carbapenem-resistant Acinetobacter baumannii

A study from Singapore has highlighted extensive environmental contamination with carbapenem-resistant Acinetobacter baumannii in the ICU. This reinforces the need for enhanced environmental measures to reduce the transmission of carbapenem-resistant Acinetobacter baumannii in the ICU setting. Carbapenem-resistant Acinetobacter baumannii is in many ways a scary organism: it’s highly resistant to antibiotics with few therapeutic options left in some cases, seems to spread readily…

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Colistin resistance genes found lurking on hospital surfaces

The emergence of colistin resistance in antibiotic resistant Gram-negative bacteria like CPE is a real concern. An Italian study just published has discovered colistin-resistance genes (mcr-1) on hospital surfaces. This raises the worrying possibility that hospital surfaces could be an important reservoir from which colistin resistance genes could spread to bacteria that cause healthcare-associated infection, making infections…

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Are surfaces a hidden reservoir for Mycobacterium contamination of heater-cooler units?

There’s an emerging global epidemic of Mycobacterium chimaera infections following cardiothoracic surgery associated with contaminated heater-cooler units (machines that are used in theatre during some procedures). It has been established that water within the machines can become contaminated with Mycobacterium species, and that this can create a bio-aerosol that finds its way into the surgical field and causes an…

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Dry surface biofilms: it’s time for action

We blogged last week about a lab study illustrating the potential for dry surface biofilms to harbour bacteria that can then be transferred via the hands of healthcare workers. This week, a new study in the Journal of Hospital Infection illustrates dramatically the scale of the problem of dry surface biofilms in hospitals: a whopping 95% of 61 surfaces…

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The role of dry surface biofilm in spreading hospital pathogens

We have discovered only in recent years that dry surface biofilms are commonplace on hard surfaces in hospital. A recent Australian study illustrates clearly (and alarmingly!) that bacteria can be transferred from dry surface biofilms to the hands of healthcare workers – and so probably have an important role in transmission. This simple lab study evaluated the…

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Further evidence that UV room decontamination reduces transmission in hospitals

A study published in the Lancet Infectious Diseases provides further evidence that UV room decontamination reduces transmission in hospitals. The multicentre cluster-randomised study showed that introducing UV room decontamination for selected patient rooms resulted in a hospital-wide reduction in C. difficile and VRE acquisition compared with standard methods of decontamination. This is a companion article to the BETR-D study that was…

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Disinfectant wipes mop the floor with chlorine solution

There are few well-controlled studies investigating the impact of disinfectant wipes in a clinical setting compared with standard methods. A study from a group of researchers in Cardiff shows that one-step cleaning and disinfectant wipes are more effective than two-step detergent and chlorine solution cleaning / disinfection in removing microbial contamination from hospital surfaces. What was the…

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The unseen risk from the previous room occupant

t is clear that sharing a room or multi-occupancy bay with a patient infected or colonised with an HCAI-related pathogen is a risk factor for acquisition. Indeed, the physical segregation of patients has been a key intervention to prevent the spread of infectious diseases since the advent of germ theory! The risk of acquiring pathogens from contamination…

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Multi-occupancy bays as a risk factor for norovirus spread

Norovirus is a common cause of gastrointestinal diseases in hospitals and other ‘semi-closed’ environments (like cruise ships, prisons, and schools). A new study suggests that wards whether patients share multi-occupancy bays are more likely to experience norovirus outbreaks, and that the risk of norovirus transmission increases as more patients share a bay. The factors driving norovirus transmission…

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