Carbapenemase-Producing Enterobacterales from Patients Arriving from Ukraine in Poland, March 2022-February 2023.

Introduction: Despite a scarcity of data, before 2022 Ukraine was already considered a high-prevalence country for carbapenemase-producing Enterobacterales (CPE), and the situation has dramatically worsened during the full-scale war with Russia. The aim of this study was to analyse CPEs isolated in Poland from victims of war in Ukraine.

Methods: The study included 65 CPE isolates from March 2022 till February 2023, recovered in 36 Polish medical centres from 57 patients arriving from Ukraine, differing largely by age and reason for hospitalisation.

Multiple regional outbreaks caused by global and local VIM-producing Klebsiella pneumoniae clones in Poland, 2006-2019.

Purpose: This study was aimed at comprehensive genomic analysis of VIM-type carbapenemase-producing Klebsiella pneumoniae species complex (KpSC) in Poland.

Methods: All non-duplicate 214 VIM-producing KpSC isolates reported in Poland in 2006-2019 were short-read sequenced and re-identified by the average nucleotide identity scoring. Their clonality/phylogeny was assessed by cgMLST and SNP in comparison with genomes from international databases.

Several epidemic and multiple sporadic genotypes of OXA-244-producing Escherichia coli in Poland; predominance of the ST38 clone.

OXA-244-producing Escherichia coli (OXA-244-Ec) has disseminated in Europe, mostly in the community. In Poland it has spread since 2017, especially in 2023, but in contrast to other countries, all isolates have been identified in hospitals so far. The isolates (n = 101) represented one large and two limited outbreaks in different regions, and multiple epidemiologically and genetically non-related organisms.

Dissemination of extensively drug-resistant NDM-producing in Europe linked to patients transferred from Ukraine, March 2022 to March 2023.

BackgroundThe war in Ukraine led to migration of Ukrainian people. Early 2022, several European national surveillance systems detected multidrug-resistant (MDR) bacteria related to Ukrainian patients.AimTo investigate the genomic epidemiology of New Delhi metallo-β-lactamase (NDM)-producing from Ukrainian patients among European countries.

Large hospital outbreak caused by OXA-244-producing sequence type 38, Poland, 2023.

In February 2023, sequence type (ST) 38 producing oxacillinase 244 (OXA-244-Ec ST38) was detected from three patients in a hospital in western Poland. Overall, OXA-244-Ec ST38 was detected from 38 colonised patients in 13 wards between February and June 2023. The outbreak was investigated on site by an infection control team, and the bacterial isolates were characterised microbiologically and by whole genome sequencing.