Results 91 to 100 of about 1,559 (168)

Phenotypic and genetic analysis of Klebsiella pneumoniae strains isolated from community-acquired pneumonia patients in Rostov-on-Don in 2021–2023

Инфекция и иммунитет
Introduction. Here, we present a study of 33 Klebsiella pneumoniae strains isolated in Rostov-on-Don in 2021–2023 from patients with community-acquired pneumonia.
Violetta A. Rykova, O. N. Podladchikova, A. S. Anisimova, N. V. Aronova, A. S. Vodopyanov, S. Yu. Temyakova, E. N. Gudueva   +6 more
doaj   +1 more source

A k2A-positive Klebsiella pneumoniae causes liver and brain abscess in a Saint Kitt's man [PDF]

, 2009
Klebsiella pneumoniae isolated in community-acquired pneumonia is increasingly found in primary pyogenic liver abscesses. The presence of magA in K. pneumoniae has been implicated in hypermucoviscosity and virulence of liver abscess isolates.
Melissa S. Doud, Reni Grimes-Zeppegno, Enrique Molina, Nancimae Miller, Danajeyan Balachandar, Lisa Schneper, Robert Poppiti, Kalai Mathee
core   +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

Incidence of hypermucoviscous Klebsiella pneumoniae and phenotypic detection of their virulence factors along with classical strains among patients visiting tertiary care hospital

Journal of Infection in Developing Countries
Introduction: A new strain of Klebsiella pneumoniae named hypermucoviscous K. pneumoniae emerges with a distinctive feature to classical strains. Infections due to hypermucoviscous strains have increased with significant mortality and morbidity.
Tika Bahadur Thapa, Sujina Maharjan, Nisha Giri, Manisha Sapkota, Ojaswee Shrestha, Puspa Raj Khanal, Govardhan Joshi   +6 more
doaj   +1 more source

Phenotypic and molecular characterization of Klebsiella spp. isolates causing community-acquired infections

New Microbes and New Infections, 2018
Klebsiella spp. isolates from community-acquired infections were characterized. A total of 39 Klebsiella spp. isolates were obtained from outpatients at four rural hospitals in Mexico (2013–2014).
U. Garza-Ramos, H. Barrios-Camacho, S. Moreno-Domínguez, J. Toribio-Jiménez, D. Jardón-Pineda, J. Cuevas-Peña, A. Sánchez-Pérez, J. Duran-Bedolla, J. Olguín-Rodriguez, A. Román-Román   +9 more
doaj   +1 more source

[Liver abscess syndrome with lung involvement secondary to hypermucoviscosity Klebsiella pneumoniae].

Gaceta medica de Mexico, 2013
Klebsiella pneumoniae liver abscess syndrome (KLAS) is an emerging infection characterized by primary monomicrobial liver abscess, bacteremia and metastatic complications. KLAS is endemic in Taiwan but additional cases has also been described in other world regions. It’s caused by strains of K.
Raúl, Carrillo Esper, José Luis, Soto Hernández, Carlos Alberto, Peña Pérez, Luis Daniel, Carrillo Córdova, Carlos Alberto, Carrillo Córdova, Dulce María, Carrillo Córdova   +5 more
openaire   +1 more source

Assessment of Biofilm Formation and Hypermucoviscosity in Klebsiella oxytoca from Clinical and Community Sources

Journal of the Faculty of Medicine Baghdad
Background: Klebsiella oxytoca is an emerging pathogen causing hospital- and community-acquired infections. Hypermucoviscous phenotype and biofilm development are considered markers of hypervirulence, causing invasive infections in healthy adultsObjective: The current study aimed to evaluate the ability of K.
Haneen A. Mustaf, Rand R. Hafidh, Mohammed H. Alsodani   +2 more
openaire   +2 more sources

Adaptive attenuation of virulence mediated by Wzc mutation in ST11-KL47 Carbapenem-resistant Klebsiella pneumonia

Frontiers in Cellular and Infection Microbiology
IntroductionThe impact of the hypermucoviscosity (HMV) phenotype in ST11-KL47 carbapenem-resistant Klebsiella pneumoniae (CRKp) pathogenicity warrants investigation for public health risk assessment.MethodsWe analyzed 230 clinical ST11-KL47 CRKp to ...
Yufeng Dai, Yufeng Dai, Qiang Zhao, Huanhuan Yan, Huanhuan Yan, Kun Ye, Lifeng Wang, Ling Guo, Na Guo, Na Guo, Wenwen Li, Wenwen Li, Jiyong Yang   +12 more
doaj   +1 more source

Mucoviscosity and resistance to human serum linked to the Hmv-associated genes (magA and/or rmpA).

, 2019
A. Hypermucoviscosity levels were determined as the OD600 of the supernatant obtained after centrifugation of an overnight culture at 1,000×g for 5 minutes. B. Survival of K. pneumoniae strains in 75% NHS compared to 75% HI-NHS.
Carmen Ardanuy (310594), Sara Marti (200612), Meritxell Cubero (3910972), Dàmaris Berbel (7400765), Mª Ángeles Domínguez (7400759), Aida González-Díaz (7400762)   +5 more
core   +1 more source

Biofilm at the interface air-liquid (ALI-biofilm).

, 2019
A. Representative sample of ALI-biofilm. The positive strain (right tube) forms a thick, while in the negative strain (left tube) no pellicle has been detected. The ring structure attaches to the wall of the tube (central tube). B.
Carmen Ardanuy (310594), Sara Marti (200612), Meritxell Cubero (3910972), Dàmaris Berbel (7400765), Mª Ángeles Domínguez (7400759), Aida González-Díaz (7400762)   +5 more
core   +1 more source