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Animal Science and Veterinary

D-Index
36
Citations
4203
World Ranking
1648
National Ranking
477

Overview

James E. Keen is affiliated with the United States Department of Agriculture in the United States. Their research focuses primarily on the fields of Agricultural and Biological Sciences as well as Medicine, with specific concentration in subfields such as Agronomy and Crop Science, Ecology, Evolution, Behavior and Systematics, and Cardiology and Cardiovascular Medicine.

Their main topics of work include Animal Disease Management and Epidemiology, Vector-Borne Animal Diseases, and Viral Infections and Immunology Research. These themes are reflected in their published works and collaborations.

James E. Keen has published research in venues like Revue Scientifique et Technique de l OIE. One of their recent papers is titled "The epidemiological status of African swine fever in domestic swine herds in the Tavush Province region, Armenia," published in 2020 in Revue Scientifique et Technique de l OIE.

  • The epidemiological status of African swine fever in domestic swine herds in the Tavush Province region, Armenia (2020, Revue Scientifique et Technique de l OIE)

Keen has frequently collaborated with coauthors including Tigran Markosyan, Kh. V. Sargsyan, Satenik Kharatyan, Hasmik Elbakyan, and Varduhi Hakobyan.

  • Tigran Markosyan
  • Kh. V. Sargsyan
  • Satenik Kharatyan
  • Hasmik Elbakyan
  • Varduhi Hakobyan

Best Publications

  • Prevalence of Escherichia coli O157:H7 in range beef calves at weaning.

    W. W. Laegreid;R. O. Elder;J. E. Keen

  • Forage Feeding to Reduce Preharvest Escherichia coli Populations in Cattle, a Review

    T.R. Callaway;R.O. Elder;J.E. Keen;R.C. Anderson

  • Animal-to-Animal Variation in Fecal Microbial Diversity among Beef Cattle

    Lisa M. Durso;Gregory P. Harhay;Timothy P. L. Smith;James L. Bono

  • Isolation of shiga-toxigenic Escherichia coli O157 from hide surfaces and the oral cavity of finished beef feedlot cattle.

    James E. Keen;Robert O. Elder

  • Mutations in the csgD Promoter Associated with Variations in Curli Expression in Certain Strains of Escherichia coli O157:H7

    Gaylen A. Uhlich;James E. Keen;Robert O. Elder

  • Bacteriophage isolated from feedlot cattle can reduce Escherichia coli O157:H7 populations in ruminant gastrointestinal tracts.

    Todd R. Callaway;Tom S. Edrington;Andrew D. Brabban;Robin C. Anderson

  • Shiga-toxigenic Escherichia coli O157 in agricultural fair livestock, United States.

    James E. Keen;Thomas E. Wittum;John R. Dunn;James L. Bono

  • Variations in the csgD Promoter of Escherichia coli O157:H7 Associated with Increased Virulence in Mice and Increased Invasion of HEp-2 Cells

    Gaylen A. Uhlich;James E. Keen;Robert O. Elder

  • Prevalence of fecal shedding of Salmonella spp in dairy herds.

    Carla L. Huston;Thomas E. Wittum;Brenda C. Love;James E. Keen

  • Longitudinal study of Escherichia coli O157:H7 in a beef cattle feedlot and role of high-level shedders in hide contamination.

    Terrance M. Arthur;James E. Keen;James E. Keen;Joseph M. Bosilevac;Dayna M. Brichta-Harhay

  • Reduced Lentivirus Susceptibility in Sheep with TMEM154 Mutations

    Michael P. Heaton;Michael L. Clawson;Carol G. Chitko-Mckown;Kreg A. Leymaster

  • Association of neonatal serum immunoglobulin G1 concentration with health and performance in beef calves

    Unknown

  • Fecal prevalence of Escherichia coli O157, Salmonella, Listeria, and Bacteriophage Infecting E. coli O157:H7 in feedlot cattle in the Southern Plains region of the United States.

    T.R. Callaway;T.S. Edrington;A.D. Brabban;J.E. Keen

  • Fecal prevalence and diversity of Salmonella species in lactating dairy cattle in four states.

    T.R. Callaway;J.E. Keen;T.S. Edrington;L.H. Baumgard

  • Genotypic Analyses of Escherichia coli O157:H7 and O157 Nonmotile Isolates Recovered from Beef Cattle and Carcasses at Processing Plants in the Midwestern States of the United States

    Genevieve A. Barkocy-Gallagher;Terrance M. Arthur;Gregory R. Siragusa;James E. Keen

  • Genetic diversity among clonal lineages within Escherichia coli O157:H7 stepwise evolutionary model.

    Peter C.H. Feng;Steven R. Monday;David W. Lacher;Lesley Allison

  • Association of bovine neonatal Fc receptor alpha-chain gene (FCGRT) haplotypes with serum IgG concentration in newborn calves.

    William W Laegreid;Michael P Heaton;James E Keen;William M Grosse

  • Association of Escherichia coli O157:H7 tir polymorphisms with human infection

    James L Bono;James E Keen;Michael L Clawson;Lisa M Durso

  • Outbreak of escherichia coli O157: H7 infections after Petting Zoo visits, North Carolina State Fair, October-November 2004.

    Brant Goode;Ciara O’Reilly;John Dunn;Kathleen Fullerton

  • Shiga-Toxigenic Escherichia coli O157:H7 Infections among Livestock Exhibitors and Visitors at a Texas County Fair

    Lisa M. Durso;Kaye Reynolds;Nate Bauer;James E. Keen

  • Prevalence of Shiga-toxigenic Escherichia coli O157:H7 in adult dairy cattle.

    John R Dunn;James E Keen;R Alex Thompson

  • Effect of ewe ovine lentivirus infection on ewe and lamb productivity

    J.E Keen;L.L Hungerford;E.T Littledike;T.E Wittum

  • Use of bovine single nucleotide polymorphism markers to verify sample tracking in beef processing.

    Michael P. Heaton;James E. Keen;Michael L. Clawson;Gregory P. Harhay

  • Prevalence of Escherichia coli O157:H7 in white-tailed deer from Louisiana.

    John R. Dunn;John R. Dunn;James E. Keen;David Moreland;R. Alex Thompson;R. Alex Thompson

  • Phylogenetic classification of Escherichia coli O157:H7 strains of human and bovine origin using a novel set of nucleotide polymorphisms

    Michael L Clawson;James E Keen;James E Keen;Timothy P L Smith;Lisa M Durso

  • Molecular Serotyping of Escherichia coli O26:H11

    Lisa M. Durso;James L. Bono;James E. Keen

  • Interleukin-8 haplotype structure from nucleotide sequence variation in commercial populations of U.S. beef cattle.

    Michael P. Heaton;Carol G. Chitko-McKown;W. Michael Grosse;John W. Keele

Frequent Co-Authors

Mohammad Koohmaraie
Mohammad Koohmaraie IEH Laboratories and Consulting Group
Thomas E. Wittum
Thomas E. Wittum The Ohio State University
Timothy P. L. Smith
Timothy P. L. Smith Agricultural Research Service
Terrance M. Arthur
Terrance M. Arthur United States Department of Agriculture
Gregory R. Siragusa
Gregory R. Siragusa Scout Microbiology
John W. Keele
John W. Keele Agricultural Research Service
Gary L. Bennett
Gary L. Bennett Agricultural Research Service
Catherine N. Cutter
Catherine N. Cutter Pennsylvania State University
Steven D. Shackelford
Steven D. Shackelford Agricultural Research Service
Tommy L. Wheeler
Tommy L. Wheeler United States Department of Agriculture

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