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Vanadate reduction by gram-positive fermentative bacteria isolated from deep-sea sediments on the northern Central Indian Ridge.
PLoS One
January 2025
School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea.
The oxidation states of vanadium determine its mobility and toxicity, and dissimilatory vanadate reduction has been reported in several microorganisms, highlighting the potential significance of this pathway in the remediation of vanadium contamination and the biogeochemical cycle. However, to date, most known microorganisms capable of reducing vanadate are Gram-negative respiratory bacteria belonging to the phylum Proteobacteria. In this study, we isolated Tepidibacter mesophilus strain VROV1 from deep-sea sediments on the northern Central Indian Ridge and investigated its ability to reduce vanadium and the impact of vanadate on its cellular metabolism.
View Article and Find Full Text PDFHybrid strains of enterotoxigenic/Shiga toxin-producing , United Kingdom, 2014-2023.
J Med Microbiol
January 2025
NIHR Health Protection Research Unit in Gastrointestinal Infections, University of Liverpool, Liverpool, UK.
Diarrhoeagenic (DEC) pathotypes are defined by genes located on mobile genetic elements, and more than one definitive pathogenicity gene may be present in the same strain. In August 2022, UK Health Security Agency (UKHSA) surveillance systems detected an outbreak of hybrid Shiga toxin-producing /enterotoxigenic (STEC-ETEC) serotype O101:H33 harbouring both Shiga toxin () and heat-stable toxin (). These hybrid strains of DEC are a public health concern, as they are often associated with enhanced pathogenicity.
View Article and Find Full Text PDFEvaluation of antimicrobial susceptibility testing methods for complex isolates from people with and without cystic fibrosis.
J Clin Microbiol
January 2025
Department of Pathology, Harbor-UCLA Medical Center, Torrance, California, USA.
The complex (BCC) is a group of Gram-negative bacteria that cause opportunistic infections, most notably in people with cystic fibrosis (CF), and have been associated with outbreaks caused by contaminated medical products. Antimicrobial susceptibility testing (AST) is often used to guide treatment for BCC infections, perhaps most importantly in people with CF who are being considered for lung transplant. However, recent studies have highlighted problems with AST methods.
View Article and Find Full Text PDFcolonization and undernutrition in infants in rural eastern Ethiopia - a longitudinal community-based birth cohort study.
Front Public Health
January 2025
Department of Animal Sciences, Global Food Systems Institute, and Emerging Pathogens Institute, University of Florida, Gainesville, FL, United States.
Background: is associated with environmental enteric dysfunction (EED) and malnutrition in children. infection could be a linchpin between livestock fecal exposure and health outcomes in low-resource smallholder settings.
Methods: We followed a birth cohort of 106 infants in rural smallholder households in eastern Ethiopia up to 13 months of age.
Rising prevalence and drug resistance of in lower respiratory tract infections.
Front Cell Infect Microbiol
January 2025
Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, Jilin, China.
() is a Gram-positive bacterium commonly colonizing the skin and mucosa in healthy individuals and hospitalized patients. Traditionally regarded as a contaminant, is now increasingly recognized as a potential cause of clinical infections, especially after the coronavirus disease pandemic. It has emerged as a pathogen implicated in severe infections, including pneumonia, bacteremia, meningitis, artificial joint infections, abdominal infections, and endocarditis.
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