Escherichia marmotae: a multidrug-resistant opportunistic human pathogen — first clinical isolation in the Czech Republic

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61383082%3A_____%2F25%3A00001679" target="_blank" >RIV/61383082:_____/25:00001679 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubmed.ncbi.nlm.nih.gov/40423922/" target="_blank" >https://pubmed.ncbi.nlm.nih.gov/40423922/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s12223-025-01267-3" target="_blank" >10.1007/s12223-025-01267-3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Escherichia marmotae: a multidrug-resistant opportunistic human pathogen — first clinical isolation in the Czech Republic

Popis výsledku v původním jazyce

The genus Escherichia comprises seven species, including Escherichia marmotae, described in 2015 from the feces of healthy Himalayan marmots (Marmota himalayana). This species exhibits atypical biochemical properties, such as negative lactose fermentation and indole production. The pathogenic potential of E. marmotae is demonstrated by its ability to invade epithelial cells and the presence of virulence genes. The first human infections with E. marmotae were recorded in Norway in 2021. This article describes the case of a 64-year-old man undergoing chemotherapy for urinary tract cancer, who was hospitalized with febrile neutropenia. An infection caused by E. marmotae and K. pneumoniae was detected. Laboratory diagnostics revealed a multidrug-resistant strain of E. coli producing KPC-type carbapenemase, subsequently identified as E. marmotae by MALDI-TOF MS (Matrix-Assisted Laser Desorption Ionization Time-of-Flight Mass Spectrometry) and confirmed by 16S rRNA sequencing and whole genome sequencing. Biochemical tests indicated similarities to E. coli. Virulence analysis revealed the presence of genes typical of pathogenic strains of E. coli. This case report is the first documented instance of E. marmotae in the Czech Republic and highlights the difficulty of distinguishing this species from E. coli in routine diagnostics. Accurate identification requires advanced methods such as MALDI-TOF and sequencing analysis.

Název v anglickém jazyce

Escherichia marmotae: a multidrug-resistant opportunistic human pathogen — first clinical isolation in the Czech Republic

Popis výsledku anglicky

The genus Escherichia comprises seven species, including Escherichia marmotae, described in 2015 from the feces of healthy Himalayan marmots (Marmota himalayana). This species exhibits atypical biochemical properties, such as negative lactose fermentation and indole production. The pathogenic potential of E. marmotae is demonstrated by its ability to invade epithelial cells and the presence of virulence genes. The first human infections with E. marmotae were recorded in Norway in 2021. This article describes the case of a 64-year-old man undergoing chemotherapy for urinary tract cancer, who was hospitalized with febrile neutropenia. An infection caused by E. marmotae and K. pneumoniae was detected. Laboratory diagnostics revealed a multidrug-resistant strain of E. coli producing KPC-type carbapenemase, subsequently identified as E. marmotae by MALDI-TOF MS (Matrix-Assisted Laser Desorption Ionization Time-of-Flight Mass Spectrometry) and confirmed by 16S rRNA sequencing and whole genome sequencing. Biochemical tests indicated similarities to E. coli. Virulence analysis revealed the presence of genes typical of pathogenic strains of E. coli. This case report is the first documented instance of E. marmotae in the Czech Republic and highlights the difficulty of distinguishing this species from E. coli in routine diagnostics. Accurate identification requires advanced methods such as MALDI-TOF and sequencing analysis.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

30400 - Medical biotechnology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Folia microbiologica

ISSN

0015-5632

e-ISSN

—

Svazek periodika

2025

Číslo periodika v rámci svazku

May

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

8

Strana od-do

1-8

Kód UT WoS článku

001497115900001

EID výsledku v databázi Scopus

2-s2.0-105006650746