Infection Control Matters

Posters from the Hong Kong Infection Control Nurses Association conference

In this episode, Brett reviews a few posters from the Hong Kong Infection Control Nurses Association conference.  Topics include fit testing, bloodstream infection surveillance and environmental cleaning. 
The poster discussed in the podcast can be viewed and downloaded here. 
 
 

The Plume Room - adventures in toilet hygiene

In this episode recorded in an Irish Bar in Nelson (NZ), Brett and Martin dive headfirst into the swirling world of toilet aerosols, airborne pathogens, and potential mitigations.We begin with a older study by Scott, Bloomfield, and Barlow examining the effectiveness of disinfection in real-world settings and how this depends heavily on practical application and behavioural compliance. Then we move to move to a recent contribution by Higham and colleagues, who shift the focus from surface disinfection to airborne exposure. Their paper presents a quantitative microbial risk assessment framework that models aerosolised viral particles generated by toilet flushing that demonstrates the importance of ventilation. Finally we discuss the work of Boone and colleagues, who evaluate a practical intervention—an air sanitizer spray—and its impact on reducing airborne virus concentrations following flushing events.
Papers that we discuss:
Scott E, Bloomfield SF, Barlow CG. Evaluation of disinfectants in the domestic environment under 'in use' conditions. J Hyg (Lond) 1984;92(2):193-203. https://doi.org/10.1017/s0022172400064214
Higham CA, López-García M, Noakes CJ, Tidswell E, Fletcher L. A Quantitative Microbial Risk Assessment (QMRA) framework for exposure from toilet flushing using experimental aerosol concentration measurements. Indoor Environments 2025;2(1). https://doi.org/10.1016/j.indenv.2024.100069 
Boone SA, Betts-Childress ND, Ijaz MK, McKinney J, Gerba CP. The impact of an air sanitizer spray on the risk of virus transmission by aerosols generated by toilet flushing. Am J Infect Control 2025. https://doi.org/10.1016/j.ajic.2025.04.008 

Automated national HCAI surveillance - potential or pipedream?

In this episode, Brett, Phil and Martin discuss a recent paper from the UK Health Security Agency (UKHSA) that examined the timeliness of data points that could be used for a centrally implemented, automated HCAI surveillance system in England, as a potential alternative to the24 current locally-implemented system. The aim was to examine the potential for a national, automated surveillance system that could reduce the burden of the existing labour-intensive process for mandatory surveillance in England although the results were felt to be generalisable.
Link to the paper we discuss:Quan TP, Eyre DW, Shadwell S, West D, Hopkins S, Chudasama D, et al. Timeliness of a potential automated system for national surveillance of healthcare-associated infections in England. J Hosp Infect 2025. https://doi.org/10.1016/j.jhin.2025.04.008. 

A re-introduction to Infection Control Matters 1500 days on

In this episode, we discuss the purpose of infection control matters and why we started the podcast. Recorded 1500 days after we started the podcast, Brett, Phil and Martin reflect on the podcast to date.
For new listeners, is also a chance to learn more about our approach to the podcast and how to make the most of our website.

National vs local IPC Guidelines - Lost in Translation?

In this episode, we explore the crucial disconnect between national infection prevention and control (IPC) guidelines and the local policies implemented in residential aged care (RAC) facilities. Brett and Martin talk to Dr Sanne Peters and Dr Kirsty Buising about their recent paper that reports on their recent analysis using the AACTT (Action, Actor, Context, Target, Time) behavioural framework, which reveals a lack of alignment and specificity in many local IPC documents.
We discuss:
Why well-intentioned policies often fail to drive behaviour
The implications of vague IPC statements in high-risk environments
How local RAC settings can better translate national guidelines into actionable, behaviourally specific practices
The role of co-design, leadership, and implementation science in bridging the gap
The paper we discuss:
Peters S, Lim LL, Francis JJ, Bennett N, Fetherstonhaugh D, Buising K, et al. Analysis of infection prevention and control documentation in residential aged care based on a behaviour specification framework. Infect Dis Health 2025. https://doi.org/10.1016/j.idh.2025.03.002.

Candidozyma auris from the lab to the front line: A discussion with UKHSA experts

In this episode Martin talks to Dr Andy Borman, (Acting Head and Consultant Clinical Scientist, UKHSA National UK Mycology Reference Lab. also Hon Professor of Medical Mycology, MRC CMM, University of Exeter), Dr Colin Brown (Deputy Director of Emerging and Epidemic Infections at UK Health Security Agency; Honorary Consultant in Infectious Diseases & Medical Microbiology at Royal Free London NHS Foundation Trust) and Dr Mariyam Mirfenderesky (Consultant in Medical Microbiology and Infectious Diseases North Middlesex and RF (AMS Lead) and UKHSA on HCAI). The UK Health Security Agency (UKHSA) is the national organisation in the United Kingdom responsible for protecting public health by preventing, detecting, and responding to infectious diseases and other health threats.
We chat about how Candidozyma auris (formerly known as Candida auris) is identified in the lab, why it matters clinically, and what it means for infection prevention and control teams. From early lab detection to real-world frontline challenges, we discuss the key issues around this emerging pathogen — and what we need to do next.
UK C. auris guidance can be found here: https://www.gov.uk/government/publications/candida-auris-laboratory-investigation-management-and-infection-prevention-and-control

Use of AI to create a podcast discussion - are we out of a job?

In this episode of Infection Control Matters, we explore the potential of AI tools to support education and professional dialogue in infection prevention and control.
We used NotebookLM, an experimental tool from Google designed to help users interact with their documents in new ways—summarising, clarifying, and even generating structured discussions based on uploaded content. Using research and guidance documents, we demonstrate how NotebookLM can be used to create a voice-generated conversation on key themes in IPC.
The paper that we uploaded was the recently published cost-effectiveness research that relates to the CLEEN study that we have previously highlihghted. A link to the open access paper can be found below.
The main part of this podcast was a dialogue created by NotebookLM following the upload of the paper. None of the voices are human (apart from Martin at the beginning and Brett at the end).
This episode offers a glimpse into how AI might be used to support reflection, training, and knowledge sharing across the healthcare community... but with caveats!
 
The paper we discuss can be found here:
Brain D, Sivapragasam N, Browne K, White NM, Russo PL, Cheng AC, et al. Economic Evaluation of Enhanced Cleaning and Disinfection of Shared Medical Equipment. JAMA Netw Open 2025;8(4):e258565. https://doi.org/10.1001/jamanetworkopen.2025.8565
NotebookLM: https://notebooklm.google/
 

The Sinkbug Survey: Antibiotics, AMR, Chemicals and Plumbing

In this episode of Infection Control Matters, Martin Kiernan speaks with Dr. Nicole Stoesser about a large-scale, multi-centre study exploring the role of hospital sink infrastructure in antimicrobial resistance and pathogen dissemination. Representing the collaborative NITCAR-led "Sinkbug Consortium" we discuss surprising findings from 29 UK hospitals—including widespread antibiotic residues in sink traps—and reflect on the implications for sink design, waste disposal practices, and infection prevention strategies
The paper we discuss is here:
Rodger G, Chau K, Aranega Bou P, Moore G, Roohi A, The SinkBug Consortium, et al. Survey of healthcare-associated sink infrastructure, and sink trap antibiotic residues and biochemistry, in 29 UK hospitals. J Hosp Infect 2025. https://doi.org/10.1016/j.jhin.2025.02.002.
Information on Nitcar: https://nitcollaborative.org.uk/wp/
Other papers of interest:
Aranega-Bou P, George RP, Verlander NQ, Paton S, Bennett A, Moore G, et al. Carbapenem-resistant Enterobacteriaceae dispersal from sinks is linked to drain position and drainage rates in a laboratory model system. J Hosp Infect 2019;102(1):63-9. https://doi.org/10.1016/j.jhin.2018.12.007
Grabowski M, Lobo JM, Gunnell B, Enfield K, Carpenter R, Barnes L, et al. Characterizations of handwashing sink activities in a single hospital medical intensive care unit. J Hosp Infect 2018;100(3):e115-e22. https://doi.org/10.1016/j.jhin.2018.04.025

Surveillance for HCAI - What is important, feasible and useful - and what isn't..

In this episode, Brett and Martin chat with Dr. Jessica Schults and Dr. Sally Havers about a recent study published in the American Journal of Infection Control. The study used a modified Delphi process to identify key healthcare infection surveillance priorities in Queensland.
Through a two-round methodology, infection prevention experts identified 13 key infection measures for a standardized minimum dataset. This dataset aims to improve statewide HAI surveillance, enhance data consistency, and support targeted infection prevention efforts. The findings offer a model that could inform broader national and international surveillance strategies.
The in-press paper is currently available here
Schults JA, Havers S, Henderson B, Healy S, Runnegar N, Hurst T, et al. Expert consensus and recommendations for Healthcare-Associated Infection surveillance in Queensland, Australia: A modified Delphi study. Am J Infect Control 2025. https://doi.org/10.1016/j.ajic.2025.02.012.

nv-HAP surveillance too time-consuming? Semi-automated may be easier than you think

In this episode, Phil and Martin talk to Dr Aline Wolfensberger, Senior Attending Physician, Department of Infectious Diseases and Hospital Epidemiology at University Hospital Zurich and a Senior Researcher at the Institute for Implementation Science in Health Care at the Univetsity of Zurich. We discuss a recent paper that has analysed a range of algorithms for detecting non-ventilator associated pneumonia (nvHAP) that have the potential for significantly reducing the surveillance burden. This work also demonstrated the value of an annual local hospital-wide point prevalence survey that provides data on which areas to target.
Relevant reading:
[1] Mueller A, Pfister M, Faes Hesse M, Zingg W, Wolfensberger A, Swissnoso G. Development and validation of selection algorithms for a non-ventilator hospital-acquired pneumonia semi-automated surveillance system. Clin Microbiol Infect 2024. https://doi.org/10.1016/j.cmi.2024.11.032 [2] Wolfensberger A, Scherrer AU, Sax H. Automated surveillance of non-ventilator-associated hospital-acquired pneumonia (nvHAP): a systematic literature review. Antimicrob Resist Infect Control 2024;13(1):30. https://doi.org/10.1186/s13756-024-01375-8 [3] Wolfensberger A, Jakob W, Faes Hesse M, Kuster SP, Meier AH, Schreiber PW, et al. Development and validation of a semi-automated surveillance system-lowering the fruit for non-ventilator-associated hospital-acquired pneumonia (nvHAP) prevention. Clin Microbiol Infect 2019;25(11):1428 e7- e13. https://doi.org/10.1016/j.cmi.2019.03.019