Results 81 to 90 of about 7,475 (210)

Prevalence of virulence factors in Escherichia coli strains isolated from the genital tract of healthy cows Prevalência de fatores de virulência em cepas de Escherichia coli isoladas do trato genital de vacas saudáveis

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2007
The prevalence of virulence genes expressing fimbriae, production of hemolysin, colicin and aerobactin, was determined in Escherichia coli isolates from healthy cow’s genital tract not showing clinical signs of infection.
D. Resende, E. Santo, C. Macedo, J.M. Marin   +3 more
doaj   +1 more source

Genomic Characterization of Pan‐Drug Resistant Klebsiella pneumoniae KPNW Isolated From UTI Patient in Bangladesh

MicrobiologyOpen, Volume 14, Issue 5, October 2025.
Klebsiella pneumoniae isolate KPNW showed resistance to all clinically relevant antibiotics. Upon whole genome sequencing and characterization, we detected a large number of antimicrobial resistance genes, resistance‐associated point mutations, virulence determinants, heavy metal resistance genes, and mobile genetic elements in errorits genome ...
Md. Wahid Murad, G. M. Shah Poran, Kalpana Baidya, Nazmul Ahsan   +3 more
wiley   +1 more source

Sessile Legionella pneumophila is able to grow on surfaces and generate structured monospecies biofilms [PDF]

, 2010
Currently, models for studying Legionella pneumophila biofilm formation rely on multi-species biofilms with low reproducibility or on growth in rich medium, where planktonic growth is unavoidable.
Bergé, Mathieu, Dubourg, Karine, Pécastaings, Sophie, Roques, Christine   +3 more
core   +1 more source

Prevalence of Hypervirulent rmpA and magA Genes in Clinical Isolates of Klebsiella pneumoniae and their association with Drug Resistant Pattern: A Cross-sectional Study [PDF]

Journal of Clinical and Diagnostic Research
Introduction: Hypervirulent Klebsiella pneumoniae (hvKp) has emerged as a pathogen of global concern that is hypermucoviscous, causing infections and rapidly acquiring Antimicrobial Resistance (AMR). HvKp is more virulent than classical K.
Kanimozhi Devanathan, Umadevi Sivaraman, Rajkumar Chinnadurai, Joshy M Easow, Vickneshwaran Vinayagam   +4 more
doaj   +1 more source

High Rates of Antimicrobial Resistance and Emergence of High‐Risk Clones in Community‐Acquired Uropathogenic Escherichia coli

MicrobiologyOpen, Volume 14, Issue 5, October 2025.
A total of 98 E. coli isolates from community‐acquired UTIs were analyzed, revealing high resistance rates to trimethoprim‐sulfamethoxazole and fluoroquinolones. Phylogenetic group B2 was the most prevalent and associated with increased virulence, while ST1193 emerged as the dominant MDR clone.
Vívian Santos Galvão, Adriano Souza Santos Monteiro, João Lucas Pinheiro Leite, Isabela Oliveira Sousa, Soraia Machado Cordeiro, Joice Neves Reis   +5 more
wiley   +1 more source

Methylobacterium sp. 2A is a plant growth-promoting rhizobacteria that has the potential to improve potato crop yield under adverse conditions [PDF]

, 2020
A Gram-negative pink-pigmented bacillus (named 2A) was isolated from Solanum tuberosum L. cv. Desirée plants that were strikingly more developed, presented increased root hair density, and higher biomass than other potato lines of the same age.
Fantino, Elisa Inés, Fernández Do Porto, Darío Augusto, Grossi, Cecilia Eugenia María, Serral, Federico, Ulloa, Rita Maria, Zawoznik, Myriam Sara   +5 more
core   +1 more source

High prevalence of hypervirulent Klebsiella pneumoniae infection in the genetic background of elderly patients in two teaching hospitals in China

Infection and Drug Resistance, 2018
Chao Liu,1 Jiaojiao Shi,2 Jun Guo3,4 1Department of Respiratory Medicine, Peking Union Medical College, Chinese Academy of Medical Sciences, China-Japan Friendship Hospital, Beijing, China; 2Department of Respiratory Medicine, Peking University Third ...
Liu C, Shi J, Guo J
doaj  

Assessment of Hypervirulent Klebsiella pneumoniae Isolates Using Multilocus Sequence Typing in West of Iran

MicrobiologyOpen, Volume 14, Issue 4, August 2025.
This study identified eight novel sequence types (STs) of hypervirulent Klebsiella pneumoniae using MLST in western Iran. The findings highlight the genetic diversity and public health threat posed by hvKP strains. Phenotypic and genotypic methods, including PCR and MLST, were used to identify hypervirulent Klebsiella pneumoniae isolates in western ...
Mohammad Hossein Haddadi, Nourkhoda Sadeghifard, Saeed Khoshnood, Abbas Maleki, Sobhan Ghafourian, Hassan Valadbeigi   +5 more
wiley   +1 more source

The global genomic landscape of hypervirulent Klebsiella pneumoniae from 1932 to 2021

mLife, Volume 4, Issue 4, Page 378-396, August 2025.
Abstract The global spread of hypervirulent Klebsiella pneumoniae (hvKp) poses a serious public health threat. In this study, we conducted genomic epidemiology analysis on 2097 global hvKp isolates, including our 900 isolates sequenced through the Illumina platform (177 of them fully sequenced through PacBio platform), representing the most ...
Xiaoyuan Jiang, Shuangshuang Li, Cuidan Li, Zhe Yin, Fangzhou Chen, Lingfei Hu, Tianyu Lu, Xiaoqiang Liu, Yinyu Wang, Guannan Ma, Xiaoyu Wang, Fei Chen, Dongsheng Zhou   +12 more
wiley   +1 more source

Opinion of the French Agency for Food, Environmental and Occupational Health & Safety (ANSES) on defining pathogenic strains of Shiga toxin‐producing Escherichia coli

Food Risk Assess Europe, Volume 3, Issue 3, July 2025.
ABSTRACT Shiga toxin‐producing Escherichia coli (STEC) are pathogenic E. coli strains that have been associated with a wide range of human clinical illness ranging from mild diarrhoea to bloody diarrhoea (BD) and haemolytic uremic syndrome (HUS). In its opinion of 18 May 2017, the French Agency for Food, Environmental and Occupational Health and Safety
Philippe Fravalo, Frédéric Auvray, Mickaël Boni, Frédéric Borges, Gilles Bornert, Frédéric Carlin, Catherine Chubilleau, Monika Coton, Georges Daube, Noémie Desriac, Florence Dubois‐Brissonnet, Michel Federighi, Michel Gautier, Michèle Gourmelon, Sandrine Guillou, Stéphane Guyot, Didier Hilaire, Nathalie Jourdan‐da Silva, Claire Le Henaff‐Le Marrec, Sandra Martin‐Latil, Jeanne‐Marie Membré, Eric Oswald, Nadia Oulahal, Pascal Piveteau, Sabine Schorr‐Galindo, Régine Talon, Isabelle Villena, Aurélie Cointe, Mickael Desvaux, Gabrielle Jones, Patricia Mariani‐Kurdjian, Frédérique Audiat‐Perrin, Laurent Guillier, Pauline Kooh   +33 more
wiley   +1 more source