Results 51 to 60 of about 5,959 (186)

Characterization of Phylogroups, Virulence Factors and Antimicrobial Resistance in Canine Pyometra‐associated Escherichia coli

Veterinary Medicine and Science, Volume 12, Issue 5, September 2026.
This study characterized 56 Escherichia coli isolates obtained from canine pyometra, which predominantly belonged to phylogroup B2 and harboured multiple virulence genes, with high multidrug resistance rates indicating potential clinical and zoonotic risks. ABSTRACT The presence of multidrug‐resistant extraintestinal pathogenic Escherichia coli (ExPEC)
İnci Başak Müştak, Murat Onur Yazlık, Beyza Nur Şitvan, Hamit Kaan Müştak, Ufuk Kaya   +4 more
wiley   +1 more source

Clinical and molecular characteristics of Klebsiella pneumoniae ventilator-associated pneumonia in mainland China

BMC Infectious Diseases, 2016
Background Klebsiella pneumoniae is a prominent nosocomial pathogen that accounts for up to 10 % of all hospital-acquired infections. It is a frequent cause of ventilator-associated pneumonia (VAP).
Si Guo, JingJing Xu, YanShuan Wei, JunHong Xu, Yi Li, Rui Xue   +5 more
doaj   +1 more source

ColV plasmid-specific aerobactin synthesis by invasive strains of Escherichia coli [PDF]

Infection and Immunity, 1981
Certain strains of Escherichia coli associated with bacteremia of humans and domestic animals harbor plasmids that promote efficient iron uptake. The mechanism, which is an important component of the virulence of invasive strains, is independent of the enterobactin system for iron uptake.
P J, Warner, P H, Williams, A, Bindereif, J B, Neilands   +3 more
openaire   +2 more sources

Emergence of Ceftazidime‐Avibactam‐Induced KPC Variants (KPC‐25/127) in Intracranial Infection and Implications for Clinical Management

MicrobiologyOpen, Volume 15, Issue 4, August 2026.
Novel KPC‐25 and first‐reported KPC‐127 sequentially evolved in one patient under CAZ‐AVI pressure, distinct mutations remodel enzyme activity to drive differential multidrug resistance. ABSTRACT The emergence of novel Klebsiella pneumoniae carbapenemase (KPC) variants contributing to clinical treatment failure poses a substantial threat to public ...
Ke Lei, Ying Tian, Chaoliang Xiong, Jing Lei, Dong Chen, Xiangni Bai, Mohd H. Abdul‐Aziz, Jiao Xie, Zeshi Liu   +8 more
wiley   +1 more source

Clinical and Microbiologic Analysis of Klebsiella pneumoniae Infection: Hypermucoviscosity, Virulence Factor, Genotype, and Antimicrobial Susceptibility

Diagnostics
Hypervirulent Klebsiella pneumoniae (KP) is defined according to hypermucoviscosity or various virulence factors and is clinically associated with community-acquired liver abscess (CLA).
Miri Hyun, Ji Yeon Lee, Hyun Ah Kim
doaj   +1 more source

The aerobactin iron uptake system of plasmid ColV-K30 in Escherichia coli.

, 1985
Some strains of Escherichia coli possess an iron uptake system, first found on a ColV plasmid, which utilises the hydroxamate siderophore aerobactin and which significantly enhances the virulence of host bacteria in experimental infections of mice.
Nicholas Henry. Carbonetti (7699745)
core   +5 more sources

Eco‐Geography Reverses Dominant AMR Reservoirs in Klebsiella pneumoniae: Integron‐Rich Mobilomes and Cross‐Niche Connectivity

Advanced Science, Volume 13, Issue 42, 28 July 2026.
Dominant antimicrobial resistance reservoirs in Klebsiella pneumoniae vary across eco‐geographic settings rather than following a universal pattern. Integrated One Health and global genomic analyses show that lineage structure, integron load, and cross‐niche connectivity shape whether AMR burden accumulates primarily in human or nonhuman compartments ...
Hui Lin, Biao Tang, Hao Xu, Jiajie Qian, Feifan Shi, Junhui Zhao, Xiaorui Mao, Xiaohe Hu, Ruishan Liu, Wenhong Liu, Xiawei Jiang, Beiwen Zheng, Guoping Zhao   +12 more
wiley   +1 more source

Molecular Detection of Siderophore Genes in Escherichia coli Among Iraqi Strains

The Iraqi Journal of Medical Sciences
Background:    Bacteria can\'t grow without iron (Fe), and the majority of them actively seek out Fe ions via specialized proteins called siderophores.
Hassan S. Younus , Nada H. A. Al-Mudallal   +1 more
doaj   +3 more sources

Interplay Between Virulence Genes, Antimicrobial Resistance Profiles, and Biofilm Formation in Klebsiella pneumoniae Causing Urinary Tract Infections in North Lebanon

MicrobiologyOpen, Volume 15, Issue 3, June 2026.
– Figure design (single panel) Central icon: K. pneumoniae cell Left panel – Virulence genes (icons): Adhesion: fimH, mrkD → strong biofilm Capsule/regulation: magA, rmpA Siderophores: entB, iucA → iron uptake Right panel – Outcomes: Biofilm strength (weak → strong gradient) Antibiotic resistance (ESBL, MDR) Bottom split: Hospital‐acquired → strong ...
Mazen Zaylaa, Rayan Farha, Jana Taleb, Amal Saad, Omar El Gharbawy, Ricardo Sarraf, Ibtihal Kassam, Chadi Hamdach, Nisrine Bissar   +8 more
wiley   +1 more source

The Role of Neonatal Ward Environment as a Reservoir for the Dissemination of Multidrug‐Resistant Klebsiella pneumoniae in Algeria

MicrobiologyOpen, Volume 15, Issue 3, June 2026.
Whole‐genome sequencing of multidrug‐resistant Klebsiella pneumoniae from a neonatal ward environment in Chlef revealed persistent resistance genes and the clonal spread of high‐risk ST13. These findings highlight the hospital environment as a potential reservoir for transmission of resistant K. pneumoniae.
Meriem Derkaoui, Martin Alexander Fischer, Mohammed Sebaihia, Rachida Namoune, Fatiha Bouheudjeur, Meryem Beloukarif, Bakhta Madaoui, Bruno Silvester Lopes   +7 more
wiley   +1 more source