Wondwossen A Gebreyes

Works (27)

Updated: April 5th, 2024 02:43

2022 journal article

Evidence of sheep and abattoir environment as important reservoirs of multidrug-resistant Salmonella and extended-spectrum beta-lactamase Escherichia coli

International Journal of Food Microbiology, 363, 109516.

By: N. Atlaw n, S. Keelara n, M. Correa n, D. Foster n, W. Gebreyes*, A. Aidara-Kane*, L. Harden n, S. Thakur n, P. Fedorka-Cray n

author keywords: Salmonella; Abattoir; Sheep; Antimicrobial susceptibility; Prevalence
MeSH headings : Abattoirs; Animals; Anti-Bacterial Agents / pharmacology; Cattle; Chickens; Cross-Sectional Studies; Drug Resistance, Multiple, Bacterial; Escherichia coli / genetics; Salmonella / genetics; Sheep; Swine; beta-Lactamases / genetics
TL;DR: It is reaffirmed that sheep and their abattoir environment act as important reservoirs of AMR ESBL E. coli and MDR Salmonella in the U.S. and further studies are required to determine associated public health risks. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: January 5, 2022

2021 journal article

Identification of CTX-M type ESBL E. coli from sheep and their abattoir environment using whole-genome sequencing

Pathogens, 10(11), 1480.

By: N. Atlaw n, S. Keelara n, M. Correa n, D. Foster n, W. Gebreyes*, A. Aidara-Kane*, L. Harden n, S. Thakur n, P. Fedorka-Cray n

author keywords: abattoir environment; antimicrobial resistance; E. coli; ESBL; North Carolina; sheep; whole-genome sequencing
TL;DR: This is the first comprehensive AMR and WGS report on ESBL E. coli from sheep and abattoir environments in the United States and associated AMR genes, point mutations, and plasmids. (via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: November 16, 2021

2021 journal article

Use of partial N-gene sequences as a tool to monitor progress on rabies control and elimination efforts in Ethiopia

ACTA TROPICA, 221.

By: L. Binkley*, A. Deressa*, M. Shi*, M. Jara n, L. Escobar*, M. Mauldin*, A. Matheny*, J. O'Quin* ...

author keywords: Dog rabies; Monitoring elimination; Co-circulating lineages; Resource-limited countries
MeSH headings : Animals; Bayes Theorem; Ethiopia / epidemiology; Phylogeny; Rabies / epidemiology; Rabies / prevention & control; Rabies / veterinary; Rabies virus / genetics
TL;DR: This investigation provides a feasible approach to assess rabies control and elimination efforts in resource-limited countries and identifies co-circulating RABV lineages that are causing recurrent spillover infections into wildlife and domestic animals. (via Semantic Scholar)
Source: Web Of Science
Added: August 16, 2021

2020 journal article

Molecular Epidemiology of Infectious Zoonotic and Livestock Diseases

MICROBIOLOGY SPECTRUM, 8(2).

By: W. Gebreyes*, D. Jackwood*, C. Bruno De Oliveira*, C. Lee*, A. Hoet* & S. Thakur n

MeSH headings : Animals; Campylobacter; Clostridioides difficile / genetics; Drug Resistance, Multiple, Bacterial / genetics; Farms; Genotyping Techniques / methods; Hospitals, Animal; Humans; Livestock / microbiology; Livestock / virology; Methicillin-Resistant Staphylococcus aureus / genetics; Molecular Epidemiology / methods; Salmonella / genetics; Virus Diseases / veterinary; Virus Diseases / virology; Zoonoses / microbiology; Zoonoses / virology
TL;DR: In recent years, whole-genome-sequence-based approaches have been increasingly used for molecular epidemiology of diseases at the interface of humans, animals, and the environment. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: April 14, 2020

2013 journal article

Methicillin-Resistant Staphylococcus aureus in Pigs and Farm Workers on Conventional and Antibiotic-Free Swine Farms in the USA

PLOS ONE, 8(5).

By: T. Smith*, W. Gebreyes*, M. Abley*, A. Harper*, B. Forshey*, M. Male*, H. Martin*, B. Molla* ...

MeSH headings : Agriculture; Animals; Anti-Bacterial Agents / pharmacology; Anti-Bacterial Agents / therapeutic use; Bacterial Typing Techniques; Demography; Female; Livestock / microbiology; Male; Methicillin-Resistant Staphylococcus aureus / classification; Methicillin-Resistant Staphylococcus aureus / drug effects; Methicillin-Resistant Staphylococcus aureus / isolation & purification; Staphylococcal Infections / drug therapy; Staphylococcal Infections / microbiology; Staphylococcal Infections / veterinary; Sus scrofa / microbiology; Swine; Swine Diseases / drug therapy; Swine Diseases / microbiology; United States; Weaning
TL;DR: The results confirm the presence of LA-MRSA in pigs and swine farm workers in the USA, but the prevalence found is relatively low compared with European studies. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2010 journal article

Prevalence and Distribution of Salmonella in Organic and Conventional Broiler Poultry Farms

FOODBORNE PATHOGENS AND DISEASE, 7(11), 1363–1371.

By: W. Alali*, S. Thakur n, R. Berghaus*, M. Martin n & W. Gebreyes*

MeSH headings : Animals; Drug Resistance, Bacterial; Drug Resistance, Multiple; Electrophoresis, Gel, Pulsed-Field; Feces / microbiology; Microbial Sensitivity Tests; Organic Agriculture; Phenotype; Poultry / microbiology; Salmonella / classification; Salmonella / genetics; Salmonella / isolation & purification; Streptomycin; Water Microbiology
TL;DR: The results of this cross-sectional study suggest that within this poultry company, the prevalence of fecal Salmonella was lower in certified-organic birds than in conventionally raised birds, andThe prevalence of antimicrobial-resistant Salmoneella was also higher in conventionals raised birds than the two types of farms. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2010 journal article

Prevalence of antimicrobial resistance and association with toxin genes in Clostridium difficile in commercial swine

AMERICAN JOURNAL OF VETERINARY RESEARCH, 71(10), 1189–1194.

By: S. Thakur n, M. Putnam, P. Fry, M. Abley & W. Gebreyes*

MeSH headings : Animals; Anti-Bacterial Agents / pharmacology; Bacterial Toxins / genetics; Clostridioides difficile / drug effects; Clostridioides difficile / genetics; Clostridium Infections / microbiology; Clostridium Infections / veterinary; Female; Male; Microbial Sensitivity Tests; Swine; Swine Diseases / microbiology
TL;DR: The common occurrence of antimicrobial-resistant C difficile and the significant association of toxigenic strains with antimicrobial resistance could contribute to high morbidity in farms with farrowing pigs. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2009 journal article

Occurrence of spvA Virulence Gene and Clinical Significance for Multidrug-Resistant Salmonella Strains

JOURNAL OF CLINICAL MICROBIOLOGY, 47(3), 777–780.

By: W. Gebreyes*, S. Thakur n, P. Dorr*, D. Tadesse*, K. Post* & L. Wolf*

MeSH headings : Animals; Anti-Bacterial Agents / pharmacology; Bacterial Typing Techniques; Cluster Analysis; DNA Fingerprinting; DNA, Bacterial / genetics; Drug Resistance, Multiple, Bacterial; Electrophoresis, Gel, Pulsed-Field; Genotype; Humans; Microbial Sensitivity Tests; Salmonella / drug effects; Salmonella / genetics; Salmonella / isolation & purification; Salmonella Infections / microbiology; Salmonella Infections, Animal / microbiology; Swine; Swine Diseases / microbiology; Virulence Factors / genetics
TL;DR: It is suggested that MDR strains that also carry specific virulence factors are more likely to be of clinical significance than those that are associated with multidrug-resistant type ACSSuT strains. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2008 article

Molecular epidemiologic investigation of Campylobacter coli in swine production systems, using multilocus sequence typing (vol 72, pg 5666, 2006)

Thakur, S., Morrow, W. E. M., Funk, J. A., Bahnson, P. B., & Gebreyes, W. A. (2008, January). APPLIED AND ENVIRONMENTAL MICROBIOLOGY, Vol. 74, pp. 342–342.

By: S. Thakur n, W. Morrow n, J. Funk n, P. Bahnson n & W. Gebreyes n

TL;DR: Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University; Department of Animal Science; and Department of Veterinary Preventive Medicine, University of Wisconsin, Madison, Wisconsin are sponsoring this research. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2007 article

Epidemiologic assessment of porcine circovirus type 2 coinfection with other pathogens in swine

Dorr, P. M., Baker, R. B., Almond, G. W., Wayne, S. R., & Gebreyes, W. A. (2007, January 15). JAVMA-JOURNAL OF THE AMERICAN VETERINARY MEDICAL ASSOCIATION, Vol. 230, pp. 244–250.

By: P. Dorr n, R. Baker*, G. Almond*, S. Wayne & W. Gebreyes*

MeSH headings : Age Factors; Animals; Animals, Newborn; Circoviridae Infections / epidemiology; Circoviridae Infections / veterinary; Circovirus / pathogenicity; Comorbidity; Confidence Intervals; Cross-Sectional Studies; Influenza A virus / pathogenicity; Logistic Models; Odds Ratio; Orthomyxoviridae Infections / epidemiology; Orthomyxoviridae Infections / veterinary; Pneumonia, Mycoplasma / epidemiology; Pneumonia, Mycoplasma / veterinary; Porcine Reproductive and Respiratory Syndrome / epidemiology; Porcine respiratory and reproductive syndrome virus / pathogenicity; Swine; Swine Diseases / epidemiology
TL;DR: In PCV2-positive pigs, coinfections with SIV, M. hyopneumoniae, and PRRSV are important, having the greatest effect in the early to late nursery phase and in 3-site production systems. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2007 journal article

Occurrence of multidrug resistant Salmonella in antimicrobial-free (ABF) swine production systems

VETERINARY MICROBIOLOGY, 125(3-4), 362–367.

By: S. Thakur*, D. Tadesse*, M. Morrow n & W. Gebreyes*

author keywords: swine; Salmonella species; antimicrobial-free production system; antimicrobials; multidrug resistance
MeSH headings : Animal Husbandry / methods; Animals; Cross-Sectional Studies; Drug Resistance, Multiple, Bacterial; Feces / microbiology; Microbial Sensitivity Tests / veterinary; Prevalence; Salmonella / drug effects; Salmonella / isolation & purification; Swine / microbiology
TL;DR: It is shown that multidrug resistant Salmonella are prevalent in ABF production systems despite the absence of antimicrobial selection pressure, and this study highlights the possible role played by slaughterhouse and other environmental factors in the contamination and dissemination of antimicroicrobial resistantSalmonella in ABf production systems. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2007 journal article

Phylogenetic analysis of spring virema of carp virus reveals distinct subgroups with common origins for recent isolates in North America and the UK

DISEASES OF AQUATIC ORGANISMS, 76(3), 193–204.

By: O. Miller*, F. Fuller*, W. Gebreyes*, G. Lewbart*, I. Shchelkunov, R. Shivappa*, C. Joiner, G. Woolford ...

author keywords: spring viremia of carp; SVCV; phosphoprotein gene; glycoprotein gene; phylogenetic analysis; molecular epidemiology
MeSH headings : Animals; Base Sequence; Carps; Fish Diseases / virology; Genetic Variation; Glycoproteins / chemistry; Glycoproteins / genetics; Molecular Sequence Data; North America; Phosphoproteins / chemistry; Phosphoproteins / genetics; Phylogeny; RNA, Viral / chemistry; RNA, Viral / genetics; Reverse Transcriptase Polymerase Chain Reaction / veterinary; Rhabdoviridae / classification; Rhabdoviridae / genetics; Rhabdoviridae / isolation & purification; Rhabdoviridae Infections / veterinary; Rhabdoviridae Infections / virology; Sequence Alignment; Sequence Analysis, DNA; United Kingdom
TL;DR: Combined P- and G-sequence data support the emergence of SVCV in Illinois,USA, and in Lake Ontario, Canada, from the initial outbreak in Wisconsin, USA, and demonstrate a close genetic link to viruses isolated during routine import checks on fish brought into the UK from Asia. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2007 journal article

Porcine reproductive and respiratory syndrome virus: Age and management system disease modeling for pathogenic co-infection

Journal of Swine Health and Production, 15(5), 258–263.

By: P. Dorr, W. Gebreyes & G. Almond

Source: NC State University Libraries
Added: August 6, 2018

2006 journal article

Comparison of prevalence, antimicrobial resistance, and occurrence of multidrug-resistant Salmonella in antimicrobial-free and conventional pig production

JOURNAL OF FOOD PROTECTION, 69(4), 743–748.

By: W. Gebreyes n, S. Thakur n & W. Morrow n

MeSH headings : Animal Husbandry / methods; Animals; Anti-Bacterial Agents / pharmacology; Drug Resistance, Bacterial; Drug Resistance, Multiple, Bacterial; Prevalence; Salmonella Infections, Animal / drug therapy; Salmonella Infections, Animal / epidemiology; Salmonella enterica / classification; Salmonella enterica / drug effects; Salmonella enterica / growth & development; Swine; Swine Diseases / drug therapy; Swine Diseases / epidemiology
TL;DR: While showing the higher likelihood of finding antimicrobial resistance among conventional herds, this study also implies that specific multidrug-resistant strains may occur on antimicrobial-free farms. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2006 journal article

Molecular epidemiologic investigation of Campylobacter coli in swine production systems, using multilocus sequence typing

APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 72(8), 5666–5669.

By: S. Thakur n, W. Morrow n, J. Funk*, P. Bahnson* & W. Gebreyes n

MeSH headings : Abattoirs; Animal Husbandry / methods; Animals; Anti-Bacterial Agents / pharmacology; Bacterial Proteins / genetics; Bacterial Typing Techniques; Campylobacter coli / classification; Campylobacter coli / genetics; Campylobacter coli / isolation & purification; Ciprofloxacin / pharmacology; Drug Resistance, Bacterial; Genotype; Molecular Epidemiology; Sequence Analysis, DNA / methods; Swine / microbiology
TL;DR: Multilocus sequence typing of 151 Campylobacter coli isolates from swine reared in conventional and antimicrobial-free production systems revealed high genotypic diversity, particularly among ciprofloxacin-resistant strains. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2006 journal article

Molecular epidemiology and diversity of Salmonella serovar Typhimurium in pigs using phenotypic and genotypic approaches

EPIDEMIOLOGY AND INFECTION, 134(1), 187–198.

By: W. Gebreyes n, C. Altier n & S. Thakur n

MeSH headings : Animal Husbandry; Animals; DNA, Bacterial / analysis; Drug Resistance, Bacterial; Drug Resistance, Multiple; Electrophoresis, Gel, Pulsed-Field; Genotype; Longitudinal Studies; Nucleic Acid Amplification Techniques; Phenotype; Polymerase Chain Reaction; Salmonella Infections, Animal / microbiology; Salmonella typhimurium / classification; Salmonella typhimurium / genetics; Salmonella typhimurium / pathogenicity; Serotyping; Swine; Swine Diseases / microbiology
TL;DR: Three genotyping methods were evaluated; amplified fragment length polymorphism (AFLP), pulsed-field gel electrophoresis (PFGE) and repetitive palindromic extragenic–PCR (Rep-PCR) using 40 isolates and AFLP showed the highest discriminatory index, resolution and throughput. (via Semantic Scholar)
UN Sustainable Development Goal Categories
10. Reduced Inequalities (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2005 journal article

Campylobacter coli in swine production: Antimicrobial resistance mechanisms and molecular epidemiology

JOURNAL OF CLINICAL MICROBIOLOGY, 43(11), 5705–5714.

By: S. Thakur n & W. Gebreyes n

MeSH headings : Abattoirs; Animals; Animals, Domestic; Anti-Bacterial Agents / pharmacology; Campylobacter Infections / epidemiology; Campylobacter Infections / veterinary; Campylobacter Infections / virology; Campylobacter coli / drug effects; Campylobacter coli / genetics; Ciprofloxacin / pharmacology; Costs and Cost Analysis; DNA Gyrase / genetics; Drug Resistance, Multiple, Viral; Electrophoresis, Gel, Pulsed-Field / economics; Electrophoresis, Gel, Pulsed-Field / veterinary; Erythromycin / pharmacology; Evaluation Studies as Topic; Genetic Variation; Microbial Sensitivity Tests; Mutation; Sequence Analysis, DNA / economics; Sequence Analysis, DNA / veterinary; Species Specificity; Swine; Swine Diseases / epidemiology; Swine Diseases / virology; Tetracycline / pharmacology; United States
TL;DR: The findings of this study indicate that multidrug-resistant diverse C. coli strains exhibiting resistance to ciprofloxacin and erythromycin are concerning, since these are the drugs of choice for treating invasive campylobacteriosis cases in humans. (via Semantic Scholar)
UN Sustainable Development Goal Categories
10. Reduced Inequalities (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2005 journal article

Campylobacter coli: prevalence and antimicrobial resistance in antimicrobial-free (ABF) swine production systems

JOURNAL OF ANTIMICROBIAL CHEMOTHERAPY, 56(4), 765–768.

By: W. Gebreyes n, S. Thakur n & W. Morrow n

author keywords: pig; Campylobacter species; antibiotic resistance; antimicrobial-free production
MeSH headings : Abattoirs; Animal Husbandry; Animals; Anti-Bacterial Agents / administration & dosage; Anti-Bacterial Agents / pharmacology; Campylobacter Infections / microbiology; Campylobacter Infections / veterinary; Campylobacter coli / drug effects; Campylobacter coli / isolation & purification; Campylobacter coli / physiology; Carrier State / microbiology; Drug Resistance, Bacterial; Swine / microbiology; Swine Diseases / microbiology
TL;DR: This is the first study reporting the isolation of ciprofloxacin-resistant strains from ABF pigs in the USA and warrants concern. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2005 journal article

Multidrug-resistant Salmonella enterica serovar Muenchen from pigs and humans and potential interserovar transfer of antimicrobial resistance

ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 49(2), 503–511.

By: W. Gebreyes n & S. Thakur n

MeSH headings : Animals; Blotting, Southern; Conjugation, Genetic; DNA Fingerprinting; DNA, Bacterial / genetics; Disease Reservoirs; Drug Resistance, Multiple, Bacterial; Electrophoresis, Gel, Pulsed-Field; Gene Transfer, Horizontal; Humans; Integrons / genetics; Microbial Sensitivity Tests; Plasmids / genetics; Salmonella enterica / drug effects; Salmonella enterica / genetics; Salmonella typhimurium / drug effects; Salmonella typhimurium / genetics; Swine
TL;DR: This is the first report to show a high frequency of MDR Salmonella serovar Muenchen strains from pigs and a human strain that is similar to the MDR isolates with the AmpC enzyme previously reported among Salmoneella serovars Newport and Typhimurium strains. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2005 journal article

Novel hydrophobicity ruler approach for determining the octanol/water partition coefficients of very hydrophobic compounds via their polymer/solvent solution distribution coefficients

ANALYTICAL CHEMISTRY, 77(5), 1275–1281.

By: X. Kong n, D. Shea n, W. Gebreyes n & X. Xia n

Contributors: X. Kong n, D. Shea n, W. Gebreyes n & X. Xia n

MeSH headings : Acetone / chemistry; Adsorption; Dimethylpolysiloxanes / chemistry; Gas Chromatography-Mass Spectrometry; Hydrophobic and Hydrophilic Interactions; Kinetics; Methanol / chemistry; Octanols / chemistry; Organic Chemicals / chemistry; Polychlorinated Biphenyls / chemistry; Polymers / chemistry; Reproducibility of Results; Silicones / chemistry; Solvents / chemistry; Water / chemistry
TL;DR: A novel hydrophobicity ruler approach for determining the octanol/water partition coefficients of very hydrophobic compounds is proposed, which is an indirect method that measures the polymer/solvent solution distribution coefficients (log Kp/s) of reference and unknown compounds. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2005 journal article

Prevalence and antimicrobial resistance of Campylobacter in antimicrobial-free and conventional pig production systems

JOURNAL OF FOOD PROTECTION, 68(11), 2402–2410.

By: S. Thakur n & W. Gebreyes n

MeSH headings : Animal Husbandry / methods; Animals; Anti-Bacterial Agents / pharmacology; Campylobacter / drug effects; Campylobacter / isolation & purification; Campylobacter coli / drug effects; Campylobacter coli / isolation & purification; Colony Count, Microbial / veterinary; Drug Resistance, Bacterial; Drug Resistance, Multiple, Bacterial; Food-Processing Industry / standards; Microbial Sensitivity Tests / veterinary; Prevalence; Swine; United States / epidemiology
TL;DR: Findings highlight the high prevalence of antimicrobial-resistant C. coli in both conventional and ABF pig production systems and have significant implications for the persistence of antim antibiotic-resistant Campylobacter in the pig production environment regardless of levels of antimicrobials. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2004 journal article

Characterization of Antimicrobial-Resistant Phenotypes and Genotypes among Salmonella enterica Recovered from Pigs on Farms, from Transport Trucks, and from Pigs after Slaughter

Journal of Food Protection, 67(4), 698–705.

By: W. Gebreyes n, P. Davies n, P. Turkson n, W. Morgan Morrow n, J. Funk n, C. Altier n, S. Thakur n

MeSH headings : Animals; Anti-Bacterial Agents / pharmacology; Colony Count, Microbial; Drug Resistance, Bacterial; Drug Resistance, Multiple, Bacterial; Electrophoresis, Gel, Pulsed-Field; Genotype; Microbial Sensitivity Tests; Phenotype; Salmonella enterica / classification; Salmonella enterica / drug effects; Swine / microbiology
TL;DR: Isolates from the trucks were similar, based on pulsed-field gel electrophoresis patterns, to those from the cecum and mesenteric lymph nodes of pigs on two of the farms, suggesting the probable infection of pigs during transport. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2004 journal article

Risk factors associated with Salmonella prevalence on swine farms

Journal of Swine Health and Production, 12(5), 246–251.

By: J. Funk & W. Gebreyes

Source: NC State University Libraries
Added: August 6, 2018

2004 journal article

Salmonella enterica serovars from pigs on farms and after slaughter and validity of using bacteriologic data to define herd Salmonella status

JOURNAL OF FOOD PROTECTION, 67(4), 691–697.

By: W. Gebreyes n, P. Davies n, P. Turkson n, W. Morrow n, J. Funk n & C. Altier n

MeSH headings : Abattoirs; Animals; Cecum / microbiology; Cross Infection / prevention & control; Feces / microbiology; Food Contamination / prevention & control; Food Handling / methods; Lymph Nodes / microbiology; Salmonella Infections, Animal / epidemiology; Salmonella enterica / isolation & purification; Swine / microbiology; Swine Diseases / epidemiology; Transportation
TL;DR: The results support recent findings that risk of exposure to Salmonella during transport and lairage remains a concern under contemporary industry conditions and imply that slaughter plant studies based on phenotyping of Salmonea alone (such as serovars) may not reliably indicate the Salmoneella status of commercial swine farms. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2004 journal article

Trends in antimicrobial resistance, phage types and integrons among Salmonella serotypes from pigs, 1997-2000

Journal of Antimicrobial Chemotherapy, 53(6), 997–1003.

By: W. Gebreyes n, S. Thakur n, P. Davies n, J. Funk n & C. Altier n

author keywords: swine; food safety; antibiotic resistance; salmonellae
MeSH headings : Animals; Bacteriophage Typing; Drug Resistance, Bacterial; Feces / microbiology; Integrons / genetics; Microbial Sensitivity Tests; Reverse Transcriptase Polymerase Chain Reaction; Salmonella / drug effects; Salmonella / virology; Salmonella Phages; Swine / microbiology; Swine Diseases / epidemiology; Swine Diseases / microbiology
TL;DR: The findings imply that pigs raised in the commercial production system may pose a risk in serving as reservoirs of resistant Salmonella. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2003 journal article

Pre-harvest food safety diagnostics for Salmonella serovars. Part 2: Molecular diagnostics

Journal of Swine Health and Production, 11(3), 141–145.

By: W. Gebreyes

Source: NC State University Libraries
Added: August 6, 2018

2002 journal article

Molecular characterization of multidrug-resistant Salmonella enterica subsp enterica serovar Typhimurium isolates from swine

JOURNAL OF CLINICAL MICROBIOLOGY, 40(8), 2813–2822.

By: W. Gebreyes* & C. Altier n

MeSH headings : Animals; Anti-Bacterial Agents / pharmacology; Bacterial Proteins / genetics; Bacterial Proteins / metabolism; Conjugation, Genetic; DNA Fingerprinting; Drug Resistance, Multiple, Bacterial / genetics; Genetic Variation; Integrases / genetics; Microbial Sensitivity Tests; Phenotype; Polymerase Chain Reaction; Polymorphism, Restriction Fragment Length; Salmonella Infections, Animal / microbiology; Salmonella typhimurium / classification; Salmonella typhimurium / drug effects; Salmonella typhimurium / genetics; Swine; Swine Diseases / microbiology
TL;DR: The findings show the widespread nature of the widespread diversity of multidrug-resistant Salmonella strains and the presence of conjugation-based resistance patterns and phage types, as well as the genetic basis for resistance among DT193 isolates. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

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