Conectar
by Forest W. Arnold, Leslie Wolf Parrish, Subathra Marimuthu, Jamie Findlow, Angela Quinn, Vidyulata Salunkhe, Daniya Sheikh, Phillip Bressoud, T’shura Ali, Dawn Balcom, Mohammad Ali, Ryan S. Doster, Deepti Deepti, Mohammad Tahboub, Fama Ndiaye, Jay Lucidarme, Stephen A. Clark, Ray Borrow, Paul Balmer, Steven Gootee, for the CERID study group
BackgroundNeisseria meningitidis is a cause of meningitis and outbreaks of it among young adults, especially college students. Rates of nasopharyngeal colonization and prevalence of specific capsular groups vary with age, geography as well as time, and may be influenced by meningococcal vaccination. The objective of this study was to measure the change in colonization rate, and define which meningococcal genogroups were present, in college students over a 3-month semester.
MethodsThis was a prospective, longitudinal cohort study with sequential oropharyngeal swabbing among college students at the University of Louisville (UofL) in Louisville, Kentucky from August to November 2022. Participants were ≥18 years of age and were enrolled within 48 hours of moving to campus-affiliated housing. Oropharyngeal swabs were collected at enrollment, one month and at three months. Samples were screened for N. meningitidis, and isolates were characterized using phenotypic and genotypic methods. Behavior questionnaires were obtained at each visit to identify risk factors for N. meningitidis colonization.
ResultsA total of 1047 participants were seen initially, of whom 821 attended all three visits. The baseline colonization rate was 3.5% followed by 3.9% after one month and 5.7% after three months. The genogroups of recovered isolates were capsule null (48%), B (38%; of which 11% were expressing capsule) and E (12%). No genogroup ACWY isolates were recovered. A total of 36% of participants had a history of receiving at least one MenB vaccine dose and 74% had a history of receiving at least one MenACWY vaccine. Risk factors for N. meningitidis nasopharyngeal carriage included being a second-year student, living on campus for the second year, smoking/vaping, kissing and sexual contact.
ConclusionsAn increase in N. meningitidis colonization over the 3-month semester was observed from 3.5% to 5.7%. The overall proportion of student carriers was significantly lower, and there were no genogroup A, C, W or Y strains isolated compared to studies conducted prior to the availability of meningococcal vaccines and the COVID-19 pandemic. However, genogroup B carriage, transmission and acquisition were almost identical to pre-COVID pandemic studies. This study reinforces the importance of periodic epidemiological monitoring of carriage as well as disease.
To assess whether emergency physicians prescribe morphine differently for patients with or without sickle cell disease (SCD). Given the difficulty of comparing strictly homogeneous patients in real clinical settings, we used a standardised clinical vignette to ensure that all clinical information was identical except for SCD status and sex.
International, randomised controlled, vignette-based study conducted online. The four vignette versions differed only in patient sex and SCD status, with all other clinical information fully standardised. Vignettes were validated by an expert panel and randomly allocated using a computer-generated sequence.
Emergency physicians practising in France, the UK, Belgium and Switzerland were invited to complete an online survey between 17 February and 17 March 2025.
A total of 1060 physicians responded, of whom 953 (90%) met eligibility criteria and were included in the analysis. Respondents were practising emergency department (ED) physicians without exclusion based on seniority or training level.
The primary outcome was the proportion of simulated patients for whom morphine was prescribed. Secondary outcomes included the number and type of analgesics prescribed and the proportion of cases meeting predefined criteria for maximal level of care (urgent triage category, lactate sampling, CT imaging and morphine administration).
Morphine was prescribed in 444 of 492 (90%) SCD vignettes and 389 of 461 (84%) non-SCD vignettes (absolute difference: 6% (95% CI 1% to 10%)). Morphine monotherapy was used in 41% of SCD cases and combined analgesia in 50%. No significant differences were observed according to patient sex or physician characteristics. Maximal level of care was recommended in 22% of SCD cases.
In this randomised vignette study, emergency physicians prescribed morphine more frequently for simulated patients with SCD than for those without SCD, despite identical clinical presentations. These findings contrast with real-world reports of inadequate analgesia in SCD and suggest that the absence of perceptual cues—such as skin colour or names—may reduce implicit bias in opioid prescribing.
NCT06835335. IRB CHU Nîmes No 25.02.01.
The climate crisis represents an unprecedented threat to global health systems, requiring urgent decarbonisation across all healthcare sectors. Although medical diagnostics affect approximately 70% of clinical decisions, they receive disproportionately little attention in healthcare sustainability research. This knowledge gap is particularly concerning as the impact of climate change on health may increase diagnostic testing demands, potentially creating a feedback loop of environmental harm. Carbon assessment methodologies within healthcare are heterogeneous and context-specific, with varying methodologies and assumptions complicating systematic evaluation. The proposed scoping review aims to map and analyse the existing literature on medical diagnostic carbon footprints, synthesising methodological approaches, core assumptions and evidence gaps to guide future decarbonisation efforts.
Four electronic databases (PubMed, Embase, Web of Science and HealthcareLCA) will be systematically searched from their inception to January 2025. The search strategy will combine subject headings and text words related to (1) carbon footprint and (2) diagnostic testing of any form. Only published, peer-reviewed studies will be considered, with no exclusions made on the basis of language, location or publication date. Two independent reviewers will screen titles/abstracts and full texts, with disagreements resolved through discussion. Data will be extracted using a bespoke tool developed and piloted by the research team to capture study characteristics, methodological approaches and key findings. Narrative synthesis and descriptive quantitative analysis will be used to analyse the data. The review will be reported in accordance with the Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews checklist.
Ethical approval is not required for this scoping review. Our findings will be published in a peer-reviewed scientific journal and presented at scientific conferences.
FreshRSS 