Research Topics
Species | Karin HoelzerSummaryAffiliation: Cornell University Country: USA Publications
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Publications
Agar disk diffusion and automated microbroth dilution produce similar antimicrobial susceptibility testing results for Salmonella serotypes Newport, Typhimurium, and 4,5,12:i-, but differ in economic costKarin Hoelzer
Department of Food Science, Cornell University, Ithaca, New York 14850, USA
Foodborne Pathog Dis 8:1281-8. 2011..Economic feasibility clearly depends on the specific laboratory settings, and disk diffusion might be an attractive alternative for certain applications such as surveillance studies...
Structured expert elicitation about Listeria monocytogenes cross-contamination in the environment of retail deli operations in the United StatesKarin Hoelzer
Department of Food Science, Cornell University, 410 Stocking Hall, Ithaca, NY 14850, USA
Risk Anal 32:1139-56. 2012..Overall, our study demonstrates the value and caveats of expert elicitation to identify data gaps and prioritize research efforts...- The prevalence of multidrug resistance is higher among bovine than human Salmonella enterica serotype Newport, Typhimurium, and 4,5,12:i:- isolates in the United States but differs by serotype and geographic regionK Hoelzer
Department of Food Science, Cornell University, 410 Stocking Hall, Ithaca, NY 14850, USA
Appl Environ Microbiol 76:5947-59. 2010..In addition, the study provides evidence for the value of including antimicrobial resistance data in epidemiological investigations and highlights the benefits and potential problems of combining subtyping methods... - Salmonella Cerro isolated over the past twenty years from various sources in the US represent a single predominant pulsed-field gel electrophoresis typeK Hoelzer
Department of Food Science, Cornell University, Ithaca, NY 14850, USA
Vet Microbiol 150:389-93. 2011.... - Animal contact as a source of human non-typhoidal salmonellosisKarin Hoelzer
Department of Food Science, 410 Stocking Hall, Cornell University, Ithaca, NY 14853, USA
Vet Res 42:34. 2011.... - Phylogenetic analysis reveals the emergence, evolution and dispersal of carnivore parvovirusesKarin Hoelzer
Baker Institute for Animal Health, Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
J Gen Virol 89:2280-9. 2008..Such limited viral migration contrasts with the global spread of the virus observed during the early phase of the CPV pandemic, but corresponds to the more endemic nature of current CPV infections... - Intrahost evolutionary dynamics of canine influenza virus in naive and partially immune dogsKarin Hoelzer
Baker Institute for Animal Health, Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Hungerford Hill Road, Ithaca, NY 14853, USA
J Virol 84:5329-35. 2010..Potentially advantageous mutations arise readily during the course of single infections and may give rise to antigenic escape or host range variants... - Identification and characterization of novel Salmonella mobile elements involved in the dissemination of genes linked to virulence and transmissionAndrea I Moreno Switt
Department of Food Science, Cornell University, Ithaca, New York, United States of America
PLoS ONE 7:e41247. 2012..The abundance of mobile elements encoding pathogenic properties may facilitate the emergence of strains with novel combinations of pathogenic traits... - Within-host genetic diversity of endemic and emerging parvoviruses of dogs and catsKarin Hoelzer
Baker Institute for Animal Health, Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
J Virol 82:11096-105. 2008..These included residues with evidence of positive selection at the population level, which is compatible with a role of this protein in host adaptation... - A whole-genome single nucleotide polymorphism-based approach to trace and identify outbreaks linked to a common Salmonella enterica subsp. enterica serovar Montevideo pulsed-field gel electrophoresis typeHenk C den Bakker
Department of Food Science, Cornell University, Ithaca, New York 14853, USA
Appl Environ Microbiol 77:8648-55. 2011..This study demonstrates that next-generation-based SNP typing provides the resolution and accuracy needed for outbreak investigations of food-borne pathogens that cannot be distinguished by currently used subtyping methods... - The emergence of parvoviruses of carnivoresKarin Hoelzer
Department of Microbiology and Immunology, Cornell University, Ithaca, NY, USA
Vet Res 41:39. 2010..CPV represents a valuable model for understanding disease emergence through cross-species transmission, while MEV provides an interesting comparison... - Prevalence, distribution, and diversity of Listeria monocytogenes in retail environments, focusing on small establishments and establishments with a history of failed inspectionsKarin Hoelzer
Department of Food Science, Cornell University, Ithaca, New York 14853, USA
J Food Prot 74:1083-95. 2011..Isolates belonging to the same ribotype were often found dispersed across multiple sites within an operation... - Cytoplasmic targeting motifs control localization of toll-like receptor 9Cynthia A Leifer
Cornell University College of Veterinary Medicine, Ithaca, New York 14853, USA
J Biol Chem 281:35585-92. 2006..We propose a model whereby modification of the cytoplasmic tail of TLR9 results in trafficking to early endosomes where it encounters CpG DNA... - Genome sequencing reveals diversification of virulence factor content and possible host adaptation in distinct subpopulations of Salmonella entericaHenk C den Bakker
Department of Food Science, Cornell University, Ithaca, NY 14853, USA
BMC Genomics 12:425. 2011..Here we used a comparative genomics approach to define the population structure of Salmonella enterica subsp. enterica, and identify clade-specific genes that may be the result of ecological specialization... - Evaluation of a vectored equine herpesvirus type 1 (EHV-1) vaccine expressing H3 haemagglutinin in the protection of dogs against canine influenzaCristina Rosas
Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
Vaccine 26:2335-43. 2008..We concluded that the EHV-1/H3 recombinant vector can be a valuable alternative for protection of dogs against clinical disease induced by CIV and can significantly reduce virus spread... - Detecting small changes and additional peptides in the canine parvovirus capsid structureChristian D S Nelson
Department of Microbiology and Immunology, Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
J Virol 82:10397-407. 2008..Exposure of viral DNA to the external environment started above 50 degrees C. Some negative stains showed increased permeability of empty capsids at higher temperatures, but no effects were seen after EGTA treatment... - Presence and role of cytosine methylation in DNA viruses of animalsKarin Hoelzer
Baker Institute for Animal Health, Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
Nucleic Acids Res 36:2825-37. 2008..Here we briefly introduce cytosine methylation before reviewing what is currently known about CpG methylation in DNA viruses... - Comparative analysis reveals frequent recombination in the parvovirusesLaura A Shackelton
Center for Infectious Disease Dynamics, Department of Biology, The Pennsylvania State University, Mueller Laboratory, University Park, PA 16802, USA
J Gen Virol 88:3294-301. 2007..Further, the rodent parvoviruses show complex evolutionary histories for separate genomic regions, suggesting recombination at the interspecies level...