Comparative Whole-Genome Analysis of Russian Foodborne Multidrug-Resistant Salmonella Infantis Isolates

被引:14
作者
Egorova, Anna [1 ]
Mikhaylova, Yulia [1 ]
Saenko, Stepan [1 ]
Tyumentseva, Marina [1 ]
Tyumentsev, Aleksandr [1 ]
Karbyshev, Konstantin [1 ]
Chernyshkov, Aleksey [1 ]
Manzeniuk, Igor [1 ]
Akimkin, Vasiliy [1 ]
Shelenkov, Andrey [1 ]
机构
[1] Cent Res Inst Epidemiol, Novogireevskaya Str 3a, Moscow 111123, Russia
关键词
Salmonella Infantis; antibiotic resistance; whole-genome sequencing; genomic epidemiology; ENTERICA SEROVAR TYPHIMURIUM; ANTIMICROBIAL RESISTANCE; ESCHERICHIA-COLI; PATHOGENICITY ISLANDS; VIRULENCE GENES; PLASMIDS; IDENTIFICATION; DIVERSITY; EVOLUTION; PATTERNS;
D O I
10.3390/microorganisms10010089
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Non-typhoidal Salmonella infections remain a significant public health problem worldwide. In this study, we present the first detailed genomic analysis report based on short-read (Illumina) whole-genome sequencing (WGS) of 45 multidrug-resistant (MDR) Salmonella enterica subsp. enterica serotype Infantis isolates from poultry and meat product samples obtained in Russia during 2018-2020, and long-read (MinION) WGS of five more representative isolates. We sought to determine whether foodborne S. Infantis have acquired new characteristics, traits, and dynamics in MDR growth in recent years. All sequenced isolates belonged to the sequence type ST32 and more than the half of isolates was characterized by six similar antimicrobial susceptibility profiles, most of which corresponded well with the antimicrobial resistance determinants to aminoglycosides, sulphonamides, tetracycline, and chloramphenicol revealed in silico. Some of the isolates were characterized by the presence of several types of plasmids simultaneously. Plasmid typing using WGS revealed Col440I, ColpVC, ColRNAI, IncFIB, IncFII, IncX1, IncHI2, IncHI2A, and IncN replicons. The identified virulence genes for 45 whole genomes of S. Infantis were similar and included 129 genes encoding structural components of the cell, factors responsible for successful invasion of the host, and secreted products. These data will be a valuable contribution to further comparative genomics of S. Infantis circulating in Russia, as well as to epidemiological surveillance of foodborne Salmonella isolates and investigations of Salmonella outbreaks.
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页数:17
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