Communicable

CMI Communications

Communicable takes on hot topics in infectious diseases and clinical microbiology. Hosted by the editors of CMI Communications, the open-access journal of ESCMID, the European Society of Clinical Microbiology & Infectious Diseases.

  1. Communicable E42: Should doctors stay at X (Twitter) or leave it?

    14 DEC

    Communicable E42: Should doctors stay at X (Twitter) or leave it?

    During the COVID-19 pandemic with lockdown mandates and social distancing, doctors, researchers, and the public were able to find refuge and community online; for the infectious disease community, it was on the social media platform Twitter, and more specifically under the widely used hashtag, #IDTwitter. Under new ownership from 2022, however, Twitter’s name and brand changed to what we now know as X, and “the heyday of #IDTwitter is long since gone”. In this special episode of Communicable, Angela Huttner and Marc Bonten invite doctors and science communicators, Neil Stone (London, UK), Ilan Schwartz (Durham, USA), and Tara Smith (Kent, USA) to debate whether we should stay on X or leave it for alternatives. This episode is a follow-up from Stone and Schwartz’s commentary [1] and Smith’s response letter [2] addressing the same topic published in CMI Communications. The views expressed by the panelists are their own and do not represent the positions of their affiliated institutions or ESCMID. This episode was not peer reviewed. Resources You can follow all participants of this episode on Bluesky: @drneilstone.bsky.social, @germhuntermd.bsky.social, @aetiology.bsky.social, @marcbonten.bsky.social, @angelahuttner.bsky.social, and Stone on X: @DrNeilStone. References Stone NRH and Schwartz IS. Joining the X-odus: Contrasting perspectives on whether infection specialists should leave X (formerly Twitter). CMI Comms 2025. DOI: 10.1016/j.cmicom.2025.105140Smith TC. Twitter remains a haven of harassment. CMI Comms 2025. DOI: 10.1016/j.cmicom.2025.105144Further reading Biever, C. Bluesky’s science takeover: 70% of Nature poll respondents use platform. Nature News 2025. PEW Research Center. How Do Americans View Childhood Vaccines, Vaccine Research and Policy? https://www.pewresearch.org/science/2025/11/18/how-do-americans-view-childhood-vaccines-vaccine-research-and-policy/   NBC News. X’s new location labels unmask users. Insiders say the idea was rejected for years. https://www.nbcnews.com/tech/elon-musk/x-user-location-feature-country-elon-musk-new-rcna245620

    1h 5m
  2. Communicable E41: Diagnostic stewardship

    30 NOV

    Communicable E41: Diagnostic stewardship

    In the last ten years, 'diagnostic stewardship' has emerged as a core principle of good clinical practice whose implementation impacts both the individual patient and public health at large. In this episode of Communicable, hosts Angela Huttner and Annie Joseph invite two experts in the field, Daniel Morgan (Maryland, USA) and Valerie Vaughn (Utah, USA), to discuss diagnostic stewardship in the context of infectious diseases, hospital medicine, and healthcare in general. Other topics covered include practical interventions for better testing practices and the role of artificial intelligence in the future of diagnostics. The episode highlights how thoughtful, intentional diagnostic practices can enhance clinician workflows and improve patient outcomes. This episode is a follow-up from Morgan’s recently published commentary in CMI Communications on diagnostic testing, and the need for evaluating its clinical impact [1]. The episode was peer reviewed by Özlem Türkmen Recen of Çınarcık State Hospital, Yalova, Türkiye.  References Baghdadi JD & Morgan DJ. Diagnostic tests should be assessed for clinical impact. CMI Comms 2024. DOI: 10.1016/j.cmicom.2024.105010Further reading Advani S and Vaughn VM. Quality Improvement Interventions and Implementation Strategies for Urine Culture Stewardship in the Acute Care Setting: Advances and Challenges. Curr Infect Dis Rep 2021. DOI: 10.1007/s11908-021-00760-3 Core Elements of Hospital Antibiotic Stewardship Programs, https://www.cdc.gov/antibiotic-use/hcp/core-elements/hospital.html Core Elements of Hospital Diagnostic Excellence (DxEx), https://www.cdc.gov/patient-safety/hcp/hospital-dx-excellence/index.htmlCosgrove SE & Srinivasan A. Antibiotic Stewardship: A Decade of Progress. Infect Dis Clin North Am 2023. DOI: 10.1016/j.idc.2023.06.003 Dik JH, et al. Integrated Stewardship Model Comprising Antimicrobial, Infection Prevention, and Diagnostic Stewardship (AID Stewardship). J Clin Microbiol 2017. DOI: 10.1128/jcm.01283-17Fabre V, et al. Principles of diagnostic stewardship: A practical guide from the Society for Healthcare Epidemiology of America Diagnostic Stewardship Task Force. Infect Control Hosp Epidemiol 2023. DOI: 10.1017/ice.2023.5 Huttner A, et al. Re: ‘ESR and CRP: it's time to stop the zombie tests’ by Spellberg et al. CMI 2025. DOI: 10.1016/j.cmi.2024.09.016 Morgan DJ, et al. Diagnostic Stewardship—Leveraging the Laboratory to Improve Antimicrobial Use. JAMA 2017. DOI:  10.1001/jama.2017.8531 Messacar K, et al. Implementation of rapid molecular infectious disease diagnostics: the role of diagnostic and antimicrobial stewardship. J Clin Microbiol 2017. DOI: 10.1128/jcm.02264-16Messacar K, et al. Clinical and Financial Impact of a Diagnostic Stewardship Program for Children with Suspected Central Nervous System Infection. J Pediatr. 2022. DOI: 10.1016/j.jpeds.2022.02.002  Qian ET, et al. Cefepime vs Piperacillin-Tazobactam in Adults Hospitalized With Acute Infection: The ACORN Randomized Clinical Trial. JAMA 2023. DOI: 10.1001/jama.2023.20583 Siontis KC et al. Diagnostic tests often fail to lead to changes in patient outcomes. J Clin Epidemiol 2014. DOI: 10.1016/j.jclinepi.2013.12.008Vaughn VM, et al. Antibiotic Stewardship Strategies and Their Association With Antibiotic Overuse After Hospital Discharge. Clin Infect Dis 2022. DOI: 10.1093/cid/ciac104Vaughn VM, et al. A Statewide Quality Initiative to Reduce Unnecessary Antibiotic Treatment of Asymptomatic Bacteriuria. JAMA Intern Med 2023. DOI: 10.1001/jamainternmed.2023.2749

    1h 2m
  3. Communicable E40: AMR in conflict and crisis zones

    16 NOV

    Communicable E40: AMR in conflict and crisis zones

    It’s World AMR Awareness Week (WAAW) and we have prepared a special episode in light of that. In this week's Communicable, Navaneeth Narayanan and Thomas Tängdén host Aula Abbara (London, UK), Guido Granata (Rome, Italy) and Tuomas Aro (Helsinki, Finland) to discuss the phenomenon of AMR in conflict and crisis zones. They elaborate on how difficult conditions and austere environments amplify the spread of AMR, drawing on findings from the ongoing conflicts in Ukraine, Gaza, Syria and other regions. Other topics covered include adapting antimicrobial stewardship and infection prevention and control (IPC) practices as well as the need for genuine political will and international collaboration to end conflicts and their exacerbation on AMR. This episode follows the webinar “Beyond the frontlines” organised by ESCMID’s AMR Action Subcommittee for WAAW 2025, featuring the same guests, and is available on ESCMID Media. This Communicable episode was peer reviewed by Arjana Zerja of Mother Theresa University Hospital Centre, Tirana, Albania.    Related ESCMID and Communicable media ESCMID Media, Part 1: Beyond the frontlines - tackling AMR in conflict and crisis zones, webinar Communicable episode 11: Nightmare series, part 2 – how to deal with carbapenemase producers Communicable episode 16: Climate change and infections – effects on clinical practice & sustainabilityResources Trainee Association of ESCIMD (TAE) Doctors without Borders (Médecins sans Frontières), Antibiogo, https://www.antibiogo.org/Doctors without Borders (Médecins sans Frontières), Mini-lab, https://fondation.msf.fr/en/projects/mini-lab Further Reading Abbara A, et al. Unravelling the linkages between conflict and antimicrobial resistance. NPJ Antimicrob Resist. 2025. DOI: 10.1038/s44259-025-00099-yAbbara A, et al. A summary and appraisal of existing evidence of antimicrobial resistance in the Syrian conflict. Int J Infect Dis. 2018. DOI: 10.1016/j.ijid.2018.06.010Abu-Shomar R, et al. Multidrug-resistant Pseudomonas isolated from water at primary health care centers in Gaza, Palestine: a cross-sectional study. IJID Reg. 2025. DOI: 10.1016/j.ijregi.2025.100671Aldbis A, et al. The lived experience of patients with conflict associated injuries whose wounds are affected by antimicrobial resistant organisms: a qualitative study from northwest Syria. Confl Health. 2023. DOI: 10.1186/s13031-023-00501-4Aro T, et al. War on antimicrobial resistance: high carriage rates of multidrug-resistant bacteria among war-injured Ukrainian refugees. Clin Microbiol Infect. 2025. DOI: 10.1016/j.cmi.2025.07.010  Bazzi W, et al. Heavy Metal Toxicity in Armed Conflicts Potentiates AMR in A. baumannii by Selecting for Antibiotic and Heavy Metal Co-resistance Mechanisms. Front Microbiol. 2020. DOI: 10.3389/fmicb.2020.00068 Dewachi O. War Biology and Antimicrobial Resistance: The Case of Gaza, AMR Insights, 2024.Granata G, et al. The impact of armed conflict on the development and global spread of antibiotic resistance: a systematic review. Clin Microbiol Infect. 2024. DOI: 10.1016/j.cmi.2024.03.029 Huang XZ, et al. Molecular analysis of imipenem-resistant Acinetobacter baumannii isolated from US service members wounded in Iraq, 2003-2008. Epidemiol Infect. 2012. DOI: 10.1017/S0950268811002871Hujer KM, et al. Analysis of antibiotic resistance genes in multidrug-resistant Acinetobacter sp. isolates from military and civilian patients treated at the Walter Reed Army Medical Center. Antimicrob Agents Chemother. 2006. DOI: 10.1128/AAC.00778-06Karah N, et al. Teleclinical Microbiology: An Innovative Approach to Providing Web-Enabled Diagnostic Laboratory Services in Syria. Am J Clin Pathol. 2022. DOI: 10.1093/ajcp/aqab160Keen EF 3rd, et al. Evaluation of potential environmental contamination sources for the presence of multidrug-resistant bacteria linked to wound infections in combat casualties. Infect Control Hosp Epidemiol. 2012. DOI: 10.1086/667382Murray CK, et al. Recovery of multidrug-resistant bacteria from combat personnel evacuated from Iraq and Afghanistan at a single military treatment facility. Mil Med. 2009. DOI: 10.7205/milmed-d-03-8008Petersen K, et al. Diversity and clinical impact of Acinetobacter baumannii colonization and infection at a military medical center. J Clin Microbiol. 2011. DOI: 10.1128/JCM.00766-10Scott P, et al. An outbreak of multidrug-resistant Acinetobacter baumannii-calcoaceticus complex infection in the US military health care system associated with military operations in Iraq. Clin Infect Dis. 2007. DOI: 10.1086/518170Sensenig RA, et al. Longitudinal characterization of Acinetobacter baumannii-calcoaceticus complex, Klebsiella pneumoniae, and methicillin-resistant Staphylococcus aureus colonizing and infecting combat casualties. Am J Infect Control. 2012. DOI: 10.1016/j.ajic.2011.03.025World Health Organization. Fourth WHO Global Evidence Review on Health and Migration stresses that equitable access to and appropriate use of antibiotics for refugees and migrants is essential to tackling Antimicrobial Resistance, News, 2022.

    57 min
  4. Communicable E39: Dengue on the rise

    2 NOV

    Communicable E39: Dengue on the rise

    Once confined to the tropics, dengue is spreading via its vector, the Aedes mosquito, to more temperate regions, causing increases in global morbidity, mortality and cost. In 2019, the WHO recognised dengue as one of the top ten global health threats alongside climate change and antimicrobial resistance [1]. In this episode of Communicable, Annie Joseph and Nav Narayanan welcome two dengue experts, André Siqueira of the non-profit Drugs for Neglected Diseases Initiative based in Geneva, Switzerland (Rio de Janeiro, Brazil), and Steven Lim of the Raja Permaisuri Bainun Hospital (Ipoh, Malaysia). Together, they discuss the epidemiology, clinical presentation and management of dengue including comparisons to other arboviral infections like zika and chikungunya, and the heightened risk of disease for vulnerable populations such as pregnant women and those with comorbidities. The conversation also highlights innovative vector-control strategies and candidate therapeutics currently under investigation.  This episode was edited by Kathryn Hostettler and peer reviewed by Loora Grünvald of the University of Tartu, Estonia.   Resources: Drug for Neglected Diseases (DNDi), https://dndi.org/ Dengue Alliance, https://dndi.org/global-networks/dengue-alliance/ Qdenga vaccine information: https://travelhealthpro.org.uk/news/763/qdenga-dengue-vaccine-guidanceDengavaxia vaccine information: https://www.cdc.gov/dengue/hcp/vaccine/index.html References:  World Health Organization, Ten threats to global health in 2019.Further reading:  Treating a feverish planet: The Dengue Alliance, a video

    57 min
  5. Communicable E38: Why do you have to be so complicated? The 2025 IDSA Complicated UTI Guidelines

    19 OCT

    Communicable E38: Why do you have to be so complicated? The 2025 IDSA Complicated UTI Guidelines

    In this episode of Communicable, Erin McCreary and Angela Huttner are joined by Barbara Trautner (St. Louis, USA) and Valéry Lavergne (Vancouver, Canada), the co-chairs and leading authors of the first IDSA guideline on complicated urinary tract infection (cUTI), which was published a few months ago [1]. Together, they discuss the process of developing the guideline from its conception in 2018, the new definition of cUTI, their stepwise approach to clinical decision-making, and some case-by-case scenarios for common antibiotics. They also elaborate on how this guideline compares (and contrasts) to other existing UTI guidelines—including the previous IDSA guideline for UTI [2] —and the clinical need to supply frontline clinicians to identify and distinguish complicated cases from the uncomplicated ones. The episode closes with what essential clinical questions the guests hope to tackle next.  This episode was edited by Kathryn Hostettler and peer reviewed by Maria Ana Flores of Santa Maria Local Health Unit, Lisbon, Portugal. Other resources: European Urologic Association guidelinesUpToDateFDA guidance on complicated UTI References Trautner BW, et al. Clinical Practice Guideline by Infectious Diseases Society of America (IDSA): 2025 Guideline on Management and Treatment of Complicated Urinary Tract Infections Gupta, K, et al. Clinical Practice Guidelines for the Treatment of Acute Uncomplicated Cystitis and Pyelonephritis in Women: 2010 Update by IDSA

    48 min
  6. Communicable E37: 'Peer review is broken'

    5 OCT

    Communicable E37: 'Peer review is broken'

    Contrary to popular belief, peer review has only recently become an integral step in scientific publishing. Currently seen by many as a badge of honour ensuring valid, innovative and honest research, peer review seems in reality to be increasingly thankless, exploitative, and sometimes invisible. How did we get here? In this episode of Communicable, Annie Joseph and Angela Huttner are joined by two experts, Melinda Baldwin (University of Maryland, USA) and Serge Horbach (Radboud University, Netherlands), to unpack and examine the role of peer review, why it is still essential, and how it fits within the greater editorial process. The conversation covers the history of peer review, contemporary formats including open review and the use of artificial intelligence, and thoughtful discussion on how to fix and rethink peer review.  This episode was edited by Kathryn Hostettler and peer reviewed by Barbora Píšová from the Czech Republic. Related podcast episodes  Communicable episode 13: The Wild West of publishing today—predatory journals and how to deal with them https://share.transistor.fm/s/e3abe9af Resources EASE, the European Association of Science Editors https://ease.org.uk/ Peer review week https://peerreviewweek.net/ Further reading Csiszar, A. The Scientific Journal: Authorship and the Politics of Knowledge in the Nineteenth Century. The University of Chicago Press, 2018. DOI: 10.7208/chicago/9780226553375.001.0001 Entradas, Sousa, Yan, et al. (2023) Public Deliberative Workshops – Findings. POIESIS project deliverable D2.2. https://poiesis-project.eu/deliverables/.Ross-Hellauer T and Horbach SPJM. Additional experiments required: A scoping review of recent evidence on key aspects of Open Peer Review, Research Evaluation, 2024. DOI: 10.1093/reseval/rvae004Horbach SPJM and Halffman W. The changing forms and expectation of peer review. Res Integr Peer Rev 2018. DOI: 10.1186/s41073-018-0051-5Danziger S, et al. Extraneous factors in judicial decisions. Proc Natl Acad Sci USA, 2011. DOI: 10.1073/pnas.1018033108Fyfe, A., Moxham, N., McDougall-Waters, J., & Røstvik, C. M. (2022). A History of Scientific Journals: Royal Society publishing, 1665-2015. London: UCL Press.“Misconduct in Science,” 9 February 1983, NN3-443-UD-12D-1 box 78, file “RES 12 Misconduct in Science, 1983-1987,” Papers of the NIH Director, National Archives and Records Administration, College Park, MD.Baldwin M. In Referees We Trust? How Peer Review Became a Mark of Scientific Legitimacy. MIT Press (Open Access). Work in Progress.

    1h 7m
  7. Communicable E36: Finding BALANCE in antibiotic durations—the BALANCE trial

    19 SEPT

    Communicable E36: Finding BALANCE in antibiotic durations—the BALANCE trial

    In this second-ever collaboration between SIDP’s Breakpoints and ESCMID’s Communicable podcasts, hosts Erin McCreary and Angela Huttner invite the two principal investigators and visionaries who spearheaded the Bacteraemia Antibiotic Length Actually Needed for Clinical Effectiveness (BALANCE) trial, Nick Daneman and Rob Fowler (Sunnybrook Health Sciences Centre, Toronto), for a “deep dive into all things that went into this trial” (1). The BALANCE trial spanned over ten years investigating - as the acronym title suggests - whether a shorter treatment duration of seven days was non-inferior to the standard of care of fourteen days for bacteraemia. The conversation covers everything from the initial hallway discussions that sparked the trial to the trial itself that screened over 36,000 patients and enrolled +3,600, its key takeaways and its impact on clinical practice as well as what’s next for Daneman and Fowler. This episode was edited by Kathryn Hostettler and Megan Klatt, and peer reviewed by Dr. Arjana Zerja of Mother Theresa University Hospital Centre, Tirana, Albania. Related podcast episodes Communicable episode 36: Finding BALANCE in antibiotic durations—the BALANCE trial https://share.transistor.fm/s/b680895eCommunicable episode 26: SNAP out of it—rethinking anti-staphylococcal penicillins for S. aureus bacteremia, the SNAP trial PSSA/MSSA results https://share.transistor.fm/s/2a3c3bb4Breakpoints episode covering IDWeek (December 2024) https://breakpoints-sidp.org/108-idweek-2024-recap-late-breaker-abstracts-and-stewardship-talks/ References BALANCE Investigators, et al.  Antibiotic Treatment for 7 versus 14 Days in Patients with Bloodstream Infections. N Engl J Med. 2025 March. DOI: 10.1056/NEJMoa2404991Further reading  Fowler VG. Eight days a week – BALANCING duration and efficacy. N Engl J Med. 2025 March. DOI: 10.1056/NEJMe2414037   Dulhunty JM, et al. Continuous vs Intermittent β-Lactam Antibiotic Infusions in Critically Ill Patients With Sepsis: The BLING III Randomized Clinical Trial. JAMA 2024. DOI: 10.1001/jama.2024.9779  Yahav D, et al. Seven versus 14 days of antibiotic therapy for uncomplicated Gram-negative bactermia: A noninferiority randomized controlled trial. Clin Infect Dis 2018. DOI: 10.1093/cid/ciy1054 Von Dach E, et al. Effect of C-reactive protein-guided antibiotic treatment duration, 7-day treatment, or 14-day treatment on 30-day clinical failure rate in patients with uncomplicated Gram-negative bacteremia, a randomized clinical trial. JAMA 2020. DOI: 10.1001/jama.2020.6348 Ong SWX, et al. Identifying heterogeneity of treatment effect for antibiotic duration in bloodstream infection: an exploratory post-hoc analysis of the BALANCE randomised clinical trial. EClinicalMedicine 2025. DOI: 10.1016/j.eclinm.2025.103195Wallach JD, et al. Evaluation of evidence of statistical support and corroboration of subgroup claims in randomized clinical trials. JAMA Intern Med 2017. DOI: 10.1001/jamainternmed.20169125

    1h 10m
  8. Communicable E35: From Ebola to COVID-19 — Graham and Kobinger on building vaccines

    7 SEPT

    Communicable E35: From Ebola to COVID-19 — Graham and Kobinger on building vaccines

    In this episode of Communicable, Angela Huttner and Erin McCreary invite two titans of vaccinology, Barney Graham (Atlanta, USA), former deputy director of the NIH NIAID Vaccine Research Center and architect of the mRNA vaccines against COVID-19, and Gary Kobinger (Galveston, USA), leading virologist in the development of the first effective Ebola vaccine, rVSV-ZEBOV, for a candid conversation about their direct experience building two of the most well known vaccines to date, and deploying them to the public. The episode also reviews the different vaccine platforms and addresses vaccine hesitancy, equitable access to vaccines, and global health equity.  This episode was edited by Kathryn Hostettler and peer reviewed by Eren Ozturk of Ankara University, Ankara, Türkiye.    Terms and sources VSV, vesicular stomatitis virusZEBOV, Zaire Ebolavirus rVSV-ZEBOV, recombinant vesicular stomatitis virus expressing the (Zaire) Ebolavirus glycoprotein (vaccine)VRC, the NIH Vaccine Research Center of NIAID Morehouse School of Medicine Satcher Global Health Equity InstituteGuardRX, https://www.guardrx.org/en/who-we-are/  References Marzi A, et al. VSV-EBOV rapidly protects macaques against infection with the 2014/15 Ebola virus outbreak strain. Science 2015. DOI: 10.1126/science.aab3920 Agnandji S, Huttner A, Zinser M, et al. Phase 1 Trials of rVSV Ebola Vaccine in Africa and Europe. New Engl J Med 2015. DOI: 10.1056/NEJMoa1502924Graham BS and Corbett KS. Prototype pathogen approach for pandemic preparedness: world on fire. J Clin Invest 2020. DOI: 10.1172/JCI139601Jackson LA, Anderson EJ, Rouphael NG, et al. An mRNA Vaccine against SARS-CoV-2 - Preliminary Report. New Engl J Med 2020. DOI: 10.1056/NEJMoa2022483

    58 min

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Communicable takes on hot topics in infectious diseases and clinical microbiology. Hosted by the editors of CMI Communications, the open-access journal of ESCMID, the European Society of Clinical Microbiology & Infectious Diseases.

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