Results 51 to 60 of about 4,039 (189)

Longitudinal Molecular Epidemiology and Genomic Surveillance of Carbapenem‐Resistant Klebsiella pneumoniae in the Gut of Healthy Individuals in China

MedComm, Volume 7, Issue 8, August 2026.
Using 16,040 stool samples from healthy individuals across 30 Chinese provinces (2016–2024), we performed longitudinal genomic surveillance of carbapenem‑resistant Klebsiella pneumoniae (CRKP) colonizing the gut. We reveal rising community CRKP prevalence, especially in southern China, a shift from blaKPC‐2 to plasmid‑borne blaNDM‐5 on IncHI2/IncHI2A ...
Zelin Yan, Yan Li, Yi Sun, Qiaoling Sun, Congcong Liu, Yanyan Zhang, Yuchen Wu, Hongwei Zhou, Shangshang Qin, Gongxiang Chen, Ruichao Li, Rong Zhang   +11 more
wiley   +1 more source

Performance Evaluation of Five Different Low-Cost Particulate Matter Sensors for Monodisperse Test Aerosols

Aerosol and Air Quality Research
Purpose The performance of five different low-cost particulate matter sensor models has been characterized with monodisperse DEHS particles by comparing particle number and mass concentrations in different size fractions to the results of an optical ...
Martin Nothhelfer, Ana Maria Todea, Dieter Bathen, Christof Asbach   +3 more
doaj   +1 more source

Pathogenicity of the avian Escherichia coli isolates from pericarditis and femoral head necrosis lesions of the colibacillosis in experimentally infected chicks

Indian Journal of Animal Sciences, 2019
The aim of the present study was to evaluate the relationship between different combinations of seven (ompT, hlyF, iss, iutA, iroN, tsh and cvaC) Colicin V (ColV) plasmid associated virulence genes (VGs) and pathogenicity of avian E. coli isolates. After
E MOHSENIFARD, M BASAKI, K ASASI, H SHARIFIYAZDI, B ABDI-HACHESOO   +4 more
doaj   +1 more source

Development of a Method to Determine the Fractional Deposition Efficiency of Full-Scale HVAC and HEPA Filter Cassettes for Nanoparticles ≥3.5 nm

Atmosphere, 2020
Novel methods have been developed to measure the fractional deposition efficiency for nanoparticles of full-scale HVAC and HEPA filter cassettes down to a particle size of 3.5 nm.
Ana Maria Todea, Frank Schmidt, Tobias Schuldt, Christof Asbach   +3 more
doaj   +1 more source

Detection of iucA (A, B), iucC (D, E) and iutA (C, F) gene expression by RT-PCR.

, 2013
(A). Detection of iucA gene transcription in E058 and E058ΔiucA by RT-PCR. Templates: lanes 1, 3, 5: cDNA derived from total RNA of E058. Lane 7: total RNA from E058 without activation of RT.
Song Gao (131209), Haizhu Pan (382963), Liping Xiong (287154), Yefei Zhou (382965), Debao Zhang (197681), Jielu Ling (382962), Qingqing Gao (382964), Xiufan Liu (26081)   +7 more
core   +1 more source

Hypervirulent Klebsiella pneumoniae Infections: A Systematic Review of Clinical, Microbiological, and Outcome Data From Reported Cases

MicrobiologyOpen, Volume 15, Issue 3, June 2026.
Distribution of organ involvement in reported hypervirulent Klebsiella pneumoniae cases. Studies restricted to isolated liver abscess cases were excluded. Percentages represent the proportion of cases with documented involvement of each anatomical site among cases with available data.
Nermin Sakru, Ender Cetinkaya, Feza Irem Aldi, Mervenur Inan, Canan Eryildiz   +4 more
wiley   +1 more source

Genomic Insights Into Carbapenem‐Resistant Klebsiella pneumoniae in Pediatric Bloodstream Infections in Zhejiang, China (2019–2024)

Journal of Clinical Laboratory Analysis, Volume 40, Issue 10, May 2026.
The primary mechanism of carbapenem resistance identified in pediatric CRKP‐BSI strains was the production of Class B metalloenzymes. We report, for the first time, an outbreak of bloodstream infections in a neonatal ward caused by the dissemination of NDM‐1‐producing ST25 K. pneumoniae.
Mingming Zhou, Xiucai Zhang, Zhenjie Chen, Chao Fang, Shixing Liu, Jintao Xia, Yining Zhao, Chenmei Zhang, Hongqiang Shen   +8 more
wiley   +1 more source

Carbon nanoparticles adversely affect CFTR expression and toxicologically relevant pathways

Scientific Reports, 2022
Cystic fibrosis is an autosomal recessive disorder caused by mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) that can lead to terminal respiratory failure.
Torben Stermann, Thach Nguyen, Burkhard Stahlmecke, Ana Maria Todea, Selina Woeste, Inken Hacheney, Jean Krutmann, Klaus Unfried, Roel P. F. Schins, Andrea Rossi   +9 more
doaj   +1 more source

Emergence and Genomic Characterization of a Hypervirulent Klebsiella pneumoniae Isolate From a New Clone in Brazil

Microbiology and Immunology, Volume 70, Issue 5, Page 261-267, May 2026.
ABSTRACT Hypervirulent Klebsiella pneumoniae (hvKp) has emerged globally as a major public health concern, often associated with severe community‐acquired and healthcare‐associated human infections. Despite alerts from PAHO/WHO on convergent hvKp strains with multidrug resistance in Latin America, comprehensive data from Brazil, the region's largest ...
Carlos Henrique Camargo, Ana Beatriz Nascimento Costa, Amanda Yaeko Yamada, Daniel de Sena Miranda, Pedro Smith Pereira Ferraro, Andreia Rodrigues de Souza, Amanda Maria de Jesus Bertani, Karoline Rodrigues Campos, Marlon Benedito Nascimento Santos, Rafaela Mastrangelo Rissetti, Carolina Lechinski de Paula, Patrik Júnior de Lima Paz, Maria Solange Duarte Soares, Christiane Salvador, Giovanna de Pinho Pieri, Jorge Siguemassa Higa, Daniela dos Santos Souza, Márcio Garcia Ribeiro, Claudio Tavares Sacchi, Monique Ribeiro Tiba‐Casas, Geraldine Madalosso, Denise Brandao de Assis   +21 more
wiley   +1 more source

An analytical model to predict the mass loading of air cleaners in typical indoor environments and to estimate the service interval from standardized filter loading tests

Indoor Environments
For indoor air cleaners, especially those using electret filters, it is known that the clean air delivery rate (CADR) can strongly decrease over time due to loading of the filters with particles.
Stefan Schumacher, Christof Asbach
doaj   +1 more source