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Occurrence of multi drug resistant ESBL-producing Enterobacteriaceae in livestock and in-silico identification of probable catalytic domain in circulating ESBL variants.
Lett Appl Microbiol
January 2025
Department of Veterinary Microbiology, West Bengal University of Animal and Fishery Sciences, 37, K.B. Sarani, Belgachia, Kolkata, West Bengal, India.
The study was conducted to detect the occurrence and phenotypic resistance pattern of ESBL-producing Enterobacteriaceae in livestock using docking based analysis to reveal the classes of antibiotics against which ESBL-producers are active. Rectal swabs from healthy cattle (n=100), goats (n=88), pigs (n=66) were collected from backyard farms in Andaman and Nicober island (India). In total, 304 isolates comprising E.
View Article and Find Full Text PDFComparative In vitro antibacterial activity of nemonoxacin and other fluoroquinolones in correlation with resistant mechanisms in contemporary methicillin-resistant Staphylococcus aureus blood isolates in Taiwan.
Ann Clin Microbiol Antimicrob
January 2025
Division of Infectious Diseases, Department of Internal Medicine, National Taiwan University Hospital, 7 Chung-Shan South Road, Taipei, 100, Taiwan.
Background: Nemonoxacin is a new quinolone with an antibacterial efficacy against methicillin-resistant Staphylococcus aureus (MRSA). Certain sequence types (STs) have been emerging in Taiwan, including fluoroquinolone-resistant ST8/USA300. It's an urgent need to determine nemonoxacin susceptibility against ST8/USA300 and other emerging lineages, if any.
View Article and Find Full Text PDFPatterns of Klebsiella pneumoniae bacteremic dissemination from the lung.
Nat Commun
January 2025
Department of Pathology, University of Michigan Medical School, Ann Arbor, MI, USA.
Bacteremia, a leading cause of death, generally arises after bacteria establish infection in a particular tissue and transit to secondary sites. Studying dissemination from primary sites by solely measuring bacterial burdens does not capture the movement of individual clones. By barcoding Klebsiella pneumoniae, a leading cause of bacteremia, we track pathogen dissemination following pneumonia.
View Article and Find Full Text PDFInvestigating the Antibiotic Resistance Genes and Mobile Genetic Elements in Water Systems impacted with Anthropogenic Pollutants.
Environ Res
January 2025
ICMR- National Institute for Research in Environmental Health, Bhopal Bypass Road, Bhauri, Bhopal - 462030, Madhya Pradesh, India. Electronic address:
A wide range of pollutants, including heavy metals, endocrine-disrupting chemicals (EDCs), residual pesticides, and pharmaceuticals, are present in various water systems, many of which strongly drive the proliferation and dissemination of antimicrobial resistance genes (ARGs), heightening the antimicrobial resistance (AMR) crisis and creating a critical challenge for environmental and health management worldwide. This study addresses the impact of anthropogenic pollutants on AMR through an extensive analysis of ARGs and mobile genetic elements (MGEs) in urban wastewater, source water, and drinking water supplies in India. Results indicated that bla and bla were the dominant ARGs across all water systems, underscoring the prevalence and dominance of resistance against β-lactam antibiotics.
View Article and Find Full Text PDFGlobal dissemination of the beta-lactam resistance gene blaTEM-1 among pathogenic bacteria.
Sci Total Environ
January 2025
Department of Biotechnology, College of Applied Life Sciences, Inje University, 197 Inje-ro, Gimhae, Gyeongsangnam 50834, Republic of Korea.
Antibiotic resistance presents a burgeoning global health crisis, with over 70 % of pathogenic bacteria now exhibiting resistance to at least one antibiotic. This study leverages a vast dataset of 618,853 pathogenic bacterial genomes from the NCBI pathogen detection database, offering comprehensive insights into antibiotic resistance patterns, species-specific profiles, and transmission dynamics of resistant pathogens. We centered our investigation on the beta-lactam resistance gene blaTEM-1, found in 43,339 genomes, revealing its extensive distribution across diverse species and isolation sources.
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