Spread of multidrug resistance among Ureaplasma serovars, Tunisia

ConclusionTo our knowledge, this is the first study that reports the widespread expansion of multidrug resistance amongUreaplasma serovars, a finding of importance in terms of both surveillance and antimicrobial usage.
Source: Antimicrobial Resistance and Infection Control - Category: Infectious Diseases Source Type: research

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This study aimed to characterize ESBL-producing Escherichia coli in Nile perch and water from Lake Victoria in Tanzania. A total of 180 samples of Nile perch and 60 water samples were screened for ESBL-producing E. coli on MacConkey agar supplemented with 2 μg/ml of cefotaxime and confirmed by blaCTX–M and blaTEM PCR. Antimicrobial resistance was determined by the disk diffusion method, and the ESBL-producing isolates were whole genome sequencing (WGS). ESBL-producing E. coli were detected in eight of the 180 analyzed Nile perch samples, and only one water sample was positive (1.7%, n = 60). Isolates were resistan...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
In this report, we investigated six RND efflux-responsive regulatory genes for contributions to V. cholerae virulence factor production. Our data showed that the V. cholerae gene VC2714, encoding a homolog of Escherichia coli OmpR, was a virulence repressor. The expression of ompR was elevated in an RND-null mutant, and ompR deletion partially restored virulence factor production in the RND-negative background. Virulence inhibitory activity in the RND-negative background resulted from OmpR repression of the key ToxR regulon virulence activator aphB, and ompR overexpression in wild-type cells also repressed virulence throug...
Source: Infection and Immunity - Category: Infectious Diseases Authors: Tags: Molecular Pathogenesis Source Type: research
ConclusionsA. baumannii ST2 producing 16S rRNA methylase ArmA has been spreading in medical settings in Myanmar.
Source: Journal of Global Antimicrobial Resistance - Category: Infectious Diseases Source Type: research
ConclusionsThe findings showed the presence of antibiotic resistance in probiotic bacteria isolated from commercially available dietary supplements. As multidrug resistance is a serious emerging issue and the risk of drug resistant gene transfer to commensals or pathogens of the gut is inevitable, the safety of probiotics has become a major criterion of interest. The findings of this study would serve as a platform for further screening and characterization of the determinants of antibiotic resistance and the genetic mechanisms of resistance.
Source: Journal of Global Antimicrobial Resistance - Category: Infectious Diseases Source Type: research
This study characterized Listeria monocytogenes, Salmonella enterica, and E. coli O157:H7 by collecting rectoanal mucosal swabs and fecal samples from 518 imported beef cattle at Jordan’s major abattoir. A unique 53 L. monocytogenes, 287 S. enterica, and 17 E. coli O157:H7 were isolated from 37, 120 and 9 different animals; respectively. The prevalence of S. enterica, L. monocytogenes and E. coli O157:H7 were 23.2% (95% CI, 19.7-27.0%), 7.1% (95% CI, 5.2-9.7%) and 1.7% (95% CI, 0.9-3.3%); respectively. All L. monocytogenes, all E. coli O157:H7 and 93.0% of S. enterica isolates resisted at least one antimicrobial clas...
Source: Comparative Immunology, Microbiology and Infectious Diseases - Category: Infectious Diseases Source Type: research
ia AM Abstract Pseudomonas aeruginosa exploits intrinsic and acquired resistance mechanisms to resist almost every antibiotic used in chemotherapy. Antimicrobial resistance in P. aeruginosa isolated from cystic fibrosis (CF) patients is further enhanced by the occurrence of hypermutator strains, a hallmark of chronic CF infections. However, the within-patient genetic diversity of P. aeruginosa populations related to antibiotic resistance remains unexplored. Here, we show the evolution of the mutational resistome profile of a P. aeruginosa hypermutator lineage by performing longitudinal and transversal analyses of ...
Source: Antimicrobial Agents and Chemotherapy - Category: Microbiology Authors: Tags: Antimicrob Agents Chemother Source Type: research
AbstractMultidrug-resistant gram-negative (MRGN) bacteria are a serious threat to global health. We used genomics to study MRGN obtained from houseflies in a tertiary Rwandan hospital. Our analysis revealed a high abundance of different MRGN includingE. coli pathogenic lineage ST131 suggesting the important role of flies in disseminating highly virulent pathogens in clinical settings and beyond.
Source: Antimicrobial Resistance and Infection Control - Category: Infectious Diseases Source Type: research
CONCLUSIONS: Broad-spectrum antibiotics were common in patients with haematological malignancies in Japan; however, antibiotic-resistant bacteria including carbapenem-resistant or multidrug-resistant bacteria were infrequent. Our results provide nationwide, cross-sectional insight into the use of antimicrobial agents, prevalence of bacteria, and antibiotic resistance, demonstrating differences in antimicrobial utilization among different haematological diseases. PMID: 32066448 [PubMed - in process]
Source: Clinical Lymphoma and Myeloma - Category: Cancer & Oncology Authors: Tags: Ann Clin Microbiol Antimicrob Source Type: research
ConclusionThis study reports the first genome sequence of a multidrug-resistant M. hominis isolate in China. These data may help to understand the genomic features and antimicrobial resistance mechanisms of this pathogen.
Source: Journal of Global Antimicrobial Resistance - Category: Infectious Diseases Source Type: research
Authors: Gil-Gil T, Martínez JL, Blanco P Abstract Introduction: Stenotrophomonas maltophilia is a prototype of bacteria intrinsically resistant to antibiotics. The reduced susceptibility of this microorganism to antimicrobials mainly relies on the presence in its chromosome of genes encoding efflux pumps and antibiotic inactivating enzymes. Consequently, the therapeutic options for treating S. maltophilia infections are limited.Areas covered: Known mechanisms of intrinsic, acquired and phenotypic resistance to antibiotics of S. maltophilia and the consequences of such resistance for treating S. maltophilia ...
Source: Expert Review of Anti-Infective Therapy - Category: Infectious Diseases Tags: Expert Rev Anti Infect Ther Source Type: research
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