Country-wide expansion of a VIM-1 carbapenemase-producing Klebsiella oxytoca ST145 lineage in Poland, 2009 –2019
ConclusionKoSC has been one of the major VIM producers in Poland, owing largely to clonal expansion of the specificK. oxytoca–In237-like lineage. Its apparently enhanced epidemic potential may create a danger on international scale. (Source: European Journal of Clinical Microbiology and Infectious Diseases)
Source: European Journal of Clinical Microbiology and Infectious Diseases - October 19, 2023 Category: Microbiology Source Type: research

Clinical impact of metformin exposure during Staphylococcus aureus bacteremia in patients with diabetes mellitus
ConclusionsMetformin exposure during SAB appears to be an independent predictor of survival in patients with diabetes. (Source: European Journal of Clinical Microbiology and Infectious Diseases)
Source: European Journal of Clinical Microbiology and Infectious Diseases - October 18, 2023 Category: Microbiology Source Type: research

Prevalence of Ureaplasma species among patients at a tertiary hospital in China: a 10-year retrospective study from 2013 to 2022
ConclusionsOur study has shown thatUreaplasma species have reached a significant prevalence in China and demands adequate attention. (Source: European Journal of Clinical Microbiology and Infectious Diseases)
Source: European Journal of Clinical Microbiology and Infectious Diseases - October 16, 2023 Category: Microbiology Source Type: research

Extreme resistance to the novel siderophore-cephalosporin cefiderocol in an extensively drug-resistant Klebsiella pneumoniae strain causing fatal pneumonia with sepsis: genomic analysis and synergistic combinations for resistance reversal
AbstractCefiderocol (CFDC) is the first-in-class siderophore-cephalosporin.Klebsiella pneumoniae strain that is extremely resistant to CFDC (MIC: 256 µg/ml) was isolated for the first time in the United Arab Emirates from a patient with pneumonia and sepsis. It belonged to sequence-type 14 (ST14), with a novel core genome ST. Resistance was driven by the co-expression of β-lactamases (blaNDM-1,blaOXA-232 andblaCTX-M-15) and a mutation in catecholate-siderophore receptor, utilized by CFDC to enter the bacterial cell. Synergistic combinations ( β-lactamase inhibitors, aztreonam plus CFDC) re-sensitized the bacteria to CFD...
Source: European Journal of Clinical Microbiology and Infectious Diseases - October 13, 2023 Category: Microbiology Source Type: research

The efficacy of mesenchymal stem cell treatment and colistin-fosfomycin combination on colistin-resistant Acinetobacter baumannii sepsis model
ConclusionIn a CRAB sepsis model, adding MSCs to a colistin-fosfomycin treatment may be beneficial in terms of reducing bacterial loads and preventing histopathological damage. (Source: European Journal of Clinical Microbiology and Infectious Diseases)
Source: European Journal of Clinical Microbiology and Infectious Diseases - October 9, 2023 Category: Microbiology Source Type: research

A side-by-side comparison of the new VITEK MS PRIME and the MALDI Biotyper sirius in the clinical microbiology laboratory
ConclusionBoth systems exhibited excellent identification rates for routine bacterial isolates. Due to its high speed, the Biotyper sirius is suited for laboratories with high sample throughput and a workflow designed for processing larger batches. The VITEK MS PRIME, with its “load and go” system accommodating up to 16 targets, reduces hands-on time, making it a reasonable choice for laboratories with fewer identifications overall but a higher number of targets and a workflow designed for parallel processing on different workstations. (Source: European Journal of Clinical Microbiology and Infectious Diseases)
Source: European Journal of Clinical Microbiology and Infectious Diseases - October 5, 2023 Category: Microbiology Source Type: research

Clinical characteristics and prognostic risk factors of candidemia in non-neutropenic patients: a retrospective cohort study
In conclusion, non-neutropenic patients with candidemia have a high in-hospitalization mortality, and APACHE II, septic shock, and RRT are independently factors. (Source: European Journal of Clinical Microbiology and Infectious Diseases)
Source: European Journal of Clinical Microbiology and Infectious Diseases - October 4, 2023 Category: Microbiology Source Type: research

Outbreak of Candida parapsilosis fungemia in an intensive care unit during a COVID surge: an epidemic within a pandemic
AbstractWe sought to investigate epidemiology, risk factors, clinical features, and outcome of theC. parapsilosis blood stream infection (BSI) outbreaks observed during the first surges of COVID-19 pandemic in our population. Retrospective, monocentric observational study in the 24 bed intensive care unit (ICU) of a tertiary care medical center in northern Italy, from 2019 to 2021 first 5  months. 2030 patients were enrolled, of whom 239 were COVID-19 positive. The total incidence ofCandida-BSI was 41.9 per 1000 admissions, with two outbreaks during 2020 spring and winter ’s COVID surges. The total numbers ofC. parapsil...
Source: European Journal of Clinical Microbiology and Infectious Diseases - September 30, 2023 Category: Microbiology Source Type: research

Risk factors for progression to bacteremia among patients with nosocomial carbapenem-resistant Acinetobacter baumannii pneumonia in the Intensive Care Unit
This study aimed to identify independent factors associated with progression from nosocomial pneumonia to bacteremia in patients infected with carbapenem-resistantA. baumannii (CR-AB). From 2019 to 2021, we conducted a retrospective anaylsis of the medical records of 159 nosocomial CR-AB pneumonia patients in our Intensive Care Unit (ICU). We employed both univariate and multivariable logistic regression models to identify factors associated with the progression of nosocomial CR-AB pneumonia to bacteremia. Among the 159 patients with nosocomial CR-AB pneumonia, 40 experienced progression to bacteremia and 38 died within 28...
Source: European Journal of Clinical Microbiology and Infectious Diseases - September 28, 2023 Category: Microbiology Source Type: research

Performances of ICT Toxoplasma IgG-IgM test in comparison with Vidas ® toxo competition to determine the immune status against Toxoplasma gondii
The objective of this study was to evaluate a new immunochromatographic test Toxoplasma ICT IgG-IgM (ICT) that allows detection of specific anti-Tg immunoglobulins G (Ig G) and M (Ig M). We included 1145 prospectively obtained sera and 376 samples selected for specificity or sensitivity studies. The performance of ICT was compared using Vidas ® Toxo Competition (TXC) and Toxoscreen®. In case of discrepancy, Vidas® Toxo Ig G or Ig M and LDBIO Toxo II IgG western blot were used to establish definitive results by additional methods. Sensitivity and specificity of ICT were respectively 99.3% and 100%. In comparison, Toxoscr...
Source: European Journal of Clinical Microbiology and Infectious Diseases - September 26, 2023 Category: Microbiology Source Type: research

Exploring and exploiting the host cell autophagy during Mycobacterium tuberculosis infection
AbstractTuberculosis, caused byMycobacterium tuberculosis, is a fatal infectious disease that prevails to be the second leading cause of death from a single infectious agent despite the availability of multiple drugs for treatment. The current treatment regimen involves the combination of several drugs for 6 months that remain ineffective in completely eradicating the infection because of several drawbacks, such as the long duration of treatment and the side effects of drugs causing non-adherence of patients to the treatment regimen. Autophagy is an intracellular degradative process that eliminates pathogens at the early s...
Source: European Journal of Clinical Microbiology and Infectious Diseases - September 23, 2023 Category: Microbiology Source Type: research

Stenotrophomonas maltophilia in people with Cystic Fibrosis: a systematic review of prevalence, risk factors and management
AbstractTo summarize the current knowledge of the clinical impact ofStenotrophomonas maltophilia (SM) in cystic fibrosis (CF) patients. A systematic review according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guideline recommendations, was performed through searches in PubMed and EMBASE databases, and CF National and International Registries websites from 2000 to 2022. Overall, 184 articles were initially retrieved, out of which 15 were selected and included in the review. Data form 6 Registries and 9 pertinent articles from the references of the studies selected were also considered...
Source: European Journal of Clinical Microbiology and Infectious Diseases - September 20, 2023 Category: Microbiology Source Type: research

High-dose anakinra in addition to standard of care including corticosteroids in patients with severe COVID-19 treated with non-invasive ventilation
AbstractManagement of COVID-19 patients experiencing persisting respiratory failure despite corticosteroids remains challenging. Data on high-dose intravenous anakinra (HD-ANK) in this context are lacking. We aimed to investigate the impact of HD-ANK on mortality in COVID-19 patients progressing to non-invasive ventilation (NIV) while receiving corticosteroids. We retrospectively analyzed the impact of HD-ANK on 28-day mortality in individuals hospitalized with COVID-19 necessitating NIV after corticosteroid initiation. A total of 256 patients were identified: 146 received standard-of-care only (SOC), and 110 received HD-A...
Source: European Journal of Clinical Microbiology and Infectious Diseases - September 19, 2023 Category: Microbiology Source Type: research

Discrimination between hypervirulent and non-hypervirulent ribotypes of Clostridioides difficile by MALDI-TOF mass spectrometry and machine learning
This study evaluated whether MALDI-TOF can distinguish between strains of HVRTs and non-HVRTs commonly found in Europe. Obtained spectra of clinicalC. difficile isolates (training set, 157 isolates) covering epidemiologically relevant HVRTs and non-HVRTs found in Europe were used as an input for different machine learning (ML) models. Another 83 isolates were used as a validation set. Direct comparison of MALDI-TOF spectra obtained from HVRTs and non-HVRTs did not allow to discriminate between these two groups, while using these spectra with certain ML models could differentiate HVRTs from non-HVRTs with an accuracy>95%...
Source: European Journal of Clinical Microbiology and Infectious Diseases - September 18, 2023 Category: Microbiology Source Type: research

In vitro and in vivo evaluation of two combined β-lactamase inhibitors against carbapenem-resistant Acinetobacter baumannii
The objective of this study was to evaluate the in vitro and in vivo efficacy of clavulanic acid (C/A) in combination with tazobactam against clinical strains of carbapenem-resistantAcinetobacter baumannii. The MIC of 24 clinical strains ofA. baumannii was determined, and a checkerboard assay and time-kill curve analysis were performed in selected strains to determine the synergy between C/A and tazobactam. The efficacy of C/A in monotherapy and in combination with tazobactam was evaluated in vitro in cell culture experiments and in a murine peritoneal sepsis model. The C/A and C/A plus tazobactam MIC50 were 128 and<1 m...
Source: European Journal of Clinical Microbiology and Infectious Diseases - September 15, 2023 Category: Microbiology Source Type: research