Full Text Journal Articles by
Author Scott V Nguyen

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Yersinia canariae sp. nov., isolated from a human yersiniosis case.

Scott V Nguyen, David R Greig, Daniel Hurley, Orla Donoghue, Yu Cao, Evonne McCabe, Molly Mitchell, Kirsten Schaffer, Claire Jenkins, Séamus Fanning,

A Gram-negative rod from the Yersinia genus was isolated from a clinical case of yersiniosis in the United Kingdom. Long read sequencing data from an Oxford Nanopore Technologies (ONT) MinION in conjunction with Illumina HiSeq reads were used to generate a finished quality genome of this strain. Overall Genome Related ... Read more >>

Int. J. Syst. Evol. Microbiol. (International journal of systematic and evolutionary microbiology)
[2020, 70(4):2382-2387]

Cited: 0 times

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Molecular characterisation of multi-drug resistant Escherichia coli of bovine origin.

João Anes, Scott V Nguyen, Athmanya K Eshwar, Evonne McCabe, Guerrino Macori, Daniel Hurley, Angelika Lehner, Séamus Fanning,

Antimicrobial resistance reported in bacteria of animal origin is considered a major challenge to veterinary public health. In this study, the genotypic and phenotypic characterisation of twelve Escherichia coli isolates of bovine origin is reported. Twelve bacterial isolates of animal origin were selected from a previous study based on their ... Read more >>

Vet. Microbiol. (Veterinary microbiology)
[2020, 242:108566]

Cited: 0 times

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Whole-Genome Sequencing-Based Characterization of 100 Listeria monocytogenes Isolates Collected from Food Processing Environments over a Four-Year Period.

Daniel Hurley, Laura Luque-Sastre, Craig T Parker, Steven Huynh, Athmanya K Eshwar, Scott V Nguyen, Nicholas Andrews, Alexandra Moura, Edward M Fox, Kieran Jordan, Angelika Lehner, Roger Stephan, Séamus Fanning,

Listeria monocytogenes is frequently found in foods and processing facilities, where it can persist, creating concerns for the food industry. Its ability to survive under a wide range of environmental conditions enhances the potential for cross-contamination of the final food products, leading to possible outbreaks of listeriosis. In this study, ... Read more >>

mSphere (mSphere)
[2019, 4(4):]

Cited: 1 time

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Complete Genome and Plasmid Sequences of Seven Isolates of Salmonella enterica subsp. enterica Harboring the mcr-1 Gene Obtained from Food in China.

Yujie Hu, Scott V Nguyen, Chang Liu, Wei Wang, Yinping Dong, Séamus Fanning, Fengqin Li,

Seven Salmonella enterica subsp. enterica isolates were identified as carrying the mcr-1 gene, by using a real-time fluorescence quantitative PCR method, from a total of 2,558 isolates which were cultured from various food origins in China between 2011 and 2016. Few complete genomes of Salmonella strains harboring the mcr-1 gene ... Read more >>

Microbiol Resour Announc (Microbiology resource announcements)
[2019, 8(31):]

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Biological Impact of a Large-Scale Genomic Inversion That Grossly Disrupts the Relative Positions of the Origin and Terminus Loci of the Streptococcus pyogenes Chromosome.

Dragutin J Savic, Scott V Nguyen, Kimberly McCullor, W Michael McShan,

A large-scale genomic inversion encompassing 0.79 Mb of the 1.816-Mb-long Streptococcus pyogenes serotype M49 strain NZ131 chromosome spontaneously occurs in a minor subpopulation of cells, and in this report genetic selection was used to obtain a stable lineage with this chromosomal rearrangement. This inversion, which drastically displaces the ori site relative ... Read more >>

J. Bacteriol. (Journal of bacteriology)
[2019, 201(17):]

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The Bacteriophages of Streptococcus pyogenes.

W Michael McShan, Kimberly A McCullor, Scott V Nguyen,

The bacteriophages of Streptococcus pyogenes (group A streptococcus) play a key role in population shaping, genetic transfer, and virulence of this bacterial pathogen. Lytic phages like A25 can alter population distributions through elimination of susceptible serotypes but also serve as key mediators for genetic transfer of virulence genes and antibiotic ... Read more >>

Microbiol Spectr (Microbiology spectrum)
[2019, 7(3):]

Cited: 0 times

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Yersinia hibernica sp. nov., isolated from pig-production environments.

Scott V Nguyen, Dechamma Mundanda Muthappa, Daniel Hurley, Orla Donoghue, Evonne McCabe, João Anes, Kirsten Schaffer, Brenda P Murphy, Jim F Buckley, Séamus Fanning,

A Gram-stain-negative, rod-shaped strain isolated from pig-production environments was identified as a new species within the genus Yersinia using multifaceted genomic and biochemical approaches. The genome of this strain was closed using a hybrid assembly approach combining both high accuracy short read sequencing data with long read sequencing technology. Phylogenetic ... Read more >>

Int. J. Syst. Evol. Microbiol. (International journal of systematic and evolutionary microbiology)
[2019, 69(7):2023-2027]

Cited: 1 time

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Comparative genomics of Salmonella enterica serovar Montevideo reveals lineage-specific gene differences that may influence ecological niche association.

Scott V Nguyen, Dayna M Harhay, James L Bono, Timothy P L Smith, Patricia I Fields, Blake A Dinsmore, Monica Santovenia, Rong Wang, Joseph M Bosilevac, Gregory P Harhay,

Salmonella enterica serovar Montevideo has been linked to recent foodborne illness outbreaks resulting from contamination of products such as fruits, vegetables, seeds and spices. Studies have shown that Montevideo also is frequently associated with healthy cattle and can be isolated from ground beef, yet human salmonellosis outbreaks of Montevideo associated ... Read more >>

Microb Genom (Microbial genomics)
[2018, 4(8):]

Cited: 1 time

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Rapid Detection and Classification of Salmonella enterica Shedding in Feedlot Cattle Utilizing the Roka Bioscience Atlas Salmonella Detection Assay for the Analysis of Rectoanal Mucosal Swabs.

W Evan Chaney, Getahun E Agga, Scott V Nguyen, Terrance M Arthur, Joseph M Bosilevac, Erin Dreyling, Anantharama Rishi, Dayna Brichta-Harhay,

With an increasing focus on preharvest food safety, rapid methods are required for the detection and quantification of foodborne pathogens such as Salmonella enterica in beef cattle. We validated the Atlas Salmonella Detection Assay (SEN), a nucleic acid amplification technology that targets Salmonella rRNA, for the qualitative detection of S. ... Read more >>

J. Food Prot. (Journal of food protection)
[2017, 80(10):1760-1767]

Cited: 1 time

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Comparative Genome Analysis of the Daptomycin-Resistant Streptococcus anginosus Strain J4206 Associated with Breakthrough Bacteremia.

Maliha Rahman, Scott V Nguyen, Kimberly A McCullor, Catherine J King, James H Jorgensen, W Michael McShan,

Streptococcus anginosus is a member of the normal oral flora that can become a pathogen causing pyogenic infections in humans. The genome of daptomycin-resistant strain J4206, originally isolated from a patient suffering from breakthrough bacteremia and septic shock at the University of Texas Health Science Center at San Antonio, was ... Read more >>

Genome Biol Evol (Genome biology and evolution)
[2016, 8(11):3446-3459]

Cited: 0 times

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Complete, Closed Genome Sequences of 10 Salmonella enterica subsp. enterica Serovar Typhimurium Strains Isolated from Human and Bovine Sources.

Scott V Nguyen, Dayna M Harhay, James L Bono, Timothy P L Smith, Patricia I Fields, Blake A Dinsmore, Monica Santovenia, Christy M Kelley, Rong Wang, Joseph M Bosilevac, Gregory P Harhay,

Salmonella enterica is a leading cause of enterocolitis for humans and animals. S. enterica subsp. enterica serovar Typhimurium infects a broad range of hosts. To facilitate genomic comparisons among isolates from different sources, we present the complete genome sequences of 10 S Typhimurium strains, 5 each isolated from human and bovine ... Read more >>

Genome Announc (Genome announcements)
[2016, 4(6):]

Cited: 2 times

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Genome Sequence of the Thermotolerant Foodborne Pathogen Salmonella enterica Serovar Senftenberg ATCC 43845 and Phylogenetic Analysis of Loci Encoding Increased Protein Quality Control Mechanisms.

Scott V Nguyen, Gregory P Harhay, James L Bono, Timothy P L Smith, Dayna M Harhay,

Salmonella enterica subsp. enterica bacteria are important foodborne pathogens with major economic impact. Some isolates exhibit increased heat tolerance, a concern for food safety. Analysis of a finished-quality genome sequence of an isolate commonly used in heat resistance studies, S. enterica subsp. enterica serovar Senftenberg 775W (ATCC 43845), demonstrated an ... Read more >>

mSystems (mSystems)
[2017, 2(1):]

Cited: 4 times

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Complete and Closed Genome Sequences of 10 Salmonella enterica subsp. enterica Serovar Anatum Isolates from Human and Bovine Sources.

Scott V Nguyen, Dayna M Harhay, James L Bono, Timothy P L Smith, Patricia I Fields, Blake A Dinsmore, Monica Santovenia, Christy M Kelley, Rong Wang, Joseph M Bosilevac, Gregory P Harhay,

Salmonella enterica is an important pathogen transmitted by numerous vectors. Genomic comparisons of Salmonella strains from disparate hosts have the potential to further our understanding of mechanisms underlying host specificities and virulence. Here, we present the closed genome and plasmid sequences of 10 Salmonella enterica subsp. enterica serovar Anatum isolates ... Read more >>

Genome Announc (Genome announcements)
[2016, 4(3):]

Cited: 2 times

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Complete Genome Sequence of Streptococcus anginosus J4211, a Clinical Isolate.

Maliha Rahman, Scott V Nguyen, Kimberly A McCullor, Catherine J King, James H Jorgensen, W Michael McShan,

Streptococcus anginosus is an opportunistic human pathogen that causes abscesses of the brain, liver, and other organs. Here, we announce the complete genome sequence of a clinically isolated strain of S. anginosus J4211. The genome sequence contains two prophages and multiple mobile genetic elements. ... Read more >>

Genome Announc (Genome announcements)
[2015, 3(6):]

Cited: 1 time

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Elimination of Chromosomal Island SpyCIM1 from Streptococcus pyogenes Strain SF370 Reverses the Mutator Phenotype and Alters Global Transcription.

Christina Hendrickson, Chad W Euler, Scott V Nguyen, Maliha Rahman, Kimberly A McCullor, Catherine J King, Vincent A Fischetti, W Michael McShan,

Streptococcus pyogenes chromosomal island M1 (SpyCIM1) integrates by site-specific recombination into the 5' end of DNA mismatch repair (MMR) gene mutL in strain SF370SmR, blocking transcription of it and the downstream operon genes. During exponential growth, SpyCIM1 excises from the chromosome and replicates as an episome, restoring mutL transcription. This ... Read more >>

PLoS ONE (PloS one)
[2015, 10(12):e0145884]

Cited: 5 times

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Molecular epidemiology and genomics of group A Streptococcus.

Debra E Bessen, W Michael McShan, Scott V Nguyen, Amol Shetty, Sonia Agrawal, Hervé Tettelin,

Streptococcus pyogenes (group A Streptococcus; GAS) is a strict human pathogen with a very high prevalence worldwide. This review highlights the genetic organization of the species and the important ecological considerations that impact its evolution. Recent advances are presented on the topics of molecular epidemiology, population biology, molecular basis for ... Read more >>

Infect. Genet. Evol. (Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases)
[2015, 33:393-418]

Cited: 20 times

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Chromosomal islands of Streptococcus pyogenes and related streptococci: molecular switches for survival and virulence.

Scott V Nguyen, William M McShan,

Streptococcus pyogenes is a significant pathogen of humans, annually causing over 700,000,000 infections and 500,000 deaths. Virulence in S. pyogenes is closely linked to mobile genetic elements like phages and chromosomal islands (CI). S. pyogenes phage-like chromosomal islands (SpyCI) confer a complex mutator phenotype on their host. SpyCI integrate into ... Read more >>

Front Cell Infect Microbiol (Frontiers in cellular and infection microbiology)
[2014, 4:109]

Cited: 10 times

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Phage-Like Streptococcus pyogenes Chromosomal Islands (SpyCI) and Mutator Phenotypes: Control by Growth State and Rescue by a SpyCI-Encoded Promoter.

Julie Scott, Scott V Nguyen, Catherine J King, Christina Hendrickson, W Michael McShan,

We recently showed that a prophage-like Streptococcus pyogenes chromosomal island (SpyCI) controls DNA mismatch repair and other repair functions in M1 genome strain SF370 by dynamic excision and reintegration into the 5' end of mutL in response to growth, causing the cell to alternate between a wild type and mutator ... Read more >>

Front Microbiol (Frontiers in microbiology)
[2012, 3:317]

Cited: 19 times

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Whole-genome association study on tissue tropism phenotypes in group A Streptococcus.

Debra E Bessen, Nikhil Kumar, Gerod S Hall, David R Riley, Feng Luo, Sergio Lizano, Candace N Ford, W Michael McShan, Scott V Nguyen, Julie C Dunning Hotopp, Hervé Tettelin,

Group A Streptococcus (GAS) has a rich evolutionary history of horizontal transfer among its core genes. Yet, despite extensive genetic mixing, GAS strains have discrete ecological phenotypes. To further our understanding of the molecular basis for ecological phenotypes, comparative genomic hybridization of a set of 97 diverse strains to a ... Read more >>

J. Bacteriol. (Journal of bacteriology)
[2011, 193(23):6651-6663]

Cited: 29 times

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