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C. Okafor · SciRah

Researcher profile · Semantic Scholar

C. Okafor

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C. Okafor — researcher profile on SciRah

h-index: 16
Works: 55
Citations: 629

Most-cited papers

Drivers, alternatives, knowledge, and perceptions towards antimicrobial use among Tennessee beef cattle producers: a qualitative study
J. E. Ekakoro, M. Caldwell, E. Strand, C. Okafor
2019BMC Veterinary Research50 citations Open access
Semantic Scholar
THE HAEMATOLOGICAL PROFILE OF THE SPRAGUE-DAWLEY OUTBRED ALBINO RAT IN NSUKKA, NIGERIA
J. Ihedioha, C. Okafor, T. Ihedioha
200850 citations Open access
Semantic Scholar
Descriptive Epidemiology of Bovine Tuberculosis in Michigan (1975–2010): Lessons Learned
C. Okafor, D. Grooms, C. Bruning-Fann, J. Averill +1 more
2011Veterinary Medicine International45 citations Open access
Semantic Scholar
Antimicrobial use practices of veterinary clinicians at a veterinary teaching hospital in the United States
J. E. Ekakoro, C. Okafor
2018Veterinary and Animal Science41 citations Open access
Semantic Scholar
Drivers of Antimicrobial Use Practices among Tennessee Dairy Cattle Producers
J. E. Ekakoro, M. Caldwell, E. Strand, C. Okafor
2018Veterinary Medicine International37 citations Open access
Semantic Scholar
Risk factors associated with struvite urolithiasis in dogs evaluated at general care veterinary hospitals in the United States.
C. Okafor, D. Pearl, S. Lefebvre, Mansen Wang +4 more
2013Journal of the American Veterinary Medical Association35 citations Open access
Semantic Scholar
Risk factors associated with calcium oxalate urolithiasis in dogs evaluated at general care veterinary hospitals in the United States.
C. Okafor, S. Lefebvre, D. Pearl, Ming-Yin Yang +4 more
2014Preventive Veterinary Medicine32 citations
Semantic Scholar
Perceptions of Tennessee cattle producers regarding the Veterinary Feed Directive
J. E. Ekakoro, M. Caldwell, E. Strand, C. Okafor
2019PLoS ONE24 citations Open access
Semantic Scholar
Fabrication of a Novel Conductometric Biosensor for Detecting Mycobacterium avium subsp. paratuberculosis Antibodies
C. Okafor, D. Grooms, E. Alocilja, S. Bolin
2008Italian National Conference on Sensors24 citations Open access
Semantic Scholar
Prevalence of Antimicrobial Resistant and Extended-Spectrum Beta-Lactamase-producing Escherichia coli in Dairy Cattle Farms in East Tennessee
B. Gelalcha, D. B. Ensermu, G. Agga, Molly Vancuren +4 more
2022Foodborne pathogens and disease22 citations
Semantic Scholar
Factors associated with seroprevalence of bovine anaplasmosis in Mississippi, USA.
C. Okafor, Samantha L. Collins, J. A. Daniel, J. Coetzee +1 more
2019Veterinary Parasitology: Regional Studies and Reports19 citations
Semantic Scholar
Factors associated with seroprevalence of bovine anaplasmosis in Texas.
C. Okafor, Samantha L. Collins, J. A. Daniel, B. Harvey +2 more
2018Veterinary Parasitology: Regional Studies and Reports19 citations Open access
Semantic Scholar
Factors associated with Seroprevalence of Anaplasma marginale in Kentucky cattle.
C. Okafor, Samantha L. Collins, J. A. Daniel, B. Harvey +3 more
2018Veterinary Parasitology: Regional Studies and Reports19 citations Open access
Semantic Scholar
Tetracycline, Sulfonamide, and Erythromycin Residues in Beef, Eggs, and Honey Sold as “Antibiotic-Free” Products in East Tennessee (USA) Farmers’ Markets
Shamim Sarkar, M. Souza, T. Martín-Jiménez, Mohamed A. Abouelkhair +2 more
2023Veterinary Sciences16 citations Open access
Semantic Scholar
Hematological and immunological responses to naturally occurring bovine respiratory disease in newly received beef calves in a commercial stocker farm.
A. Akter, J. M. Caldwell, G. Pighetti, E. Shepherd +4 more
2021Journal of Animal Science16 citations Open access
Semantic Scholar
Seroprevalence of bovine Anaplasmosis in Georgia.
C. Okafor, Samantha L. Collins, J. A. Daniel, J. Coetzee +1 more
2019Veterinary Parasitology: Regional Studies and Reports16 citations Open access
Semantic Scholar
Associations between meniscal tears and various degrees of osteoarthritis among dogs undergoing TPLO for cranial cruciate ligament rupture
Canny Fung, Michael Ficklin, C. Okafor
2023BMC Research Notes14 citations Open access
Semantic Scholar
Comparison between a Conductometric Biosensor and ELISA in the Evaluation of Johne's Disease
C. Okafor, D. Grooms, E. Alocilja, S. Bolin
2014Italian National Conference on Sensors14 citations Open access
Semantic Scholar
Control of Salmonella Dublin in a bovine dairy herd
E. Kent, C. Okafor, M. Caldwell, T. Walker +2 more
2021Journal of Veterinary Internal Medicine12 citations Open access
Semantic Scholar
Effect of Changes in Veterinary Feed Directive Regulations on Violative Antibiotic Residues in the Tissue of Food Animals from the Inspector-Generated Sampling in the United States
Shamim Sarkar, C. Okafor
2022Microorganisms11 citations Open access
Semantic Scholar
Peripheral Intravenous Catheter Complications in Hospitalized Cats: An Observational Pilot Study.
K. Bush, A. Odunayo, Katherine Hedges, Liz-Valérie S Guieu +2 more
2020Topics in Companion Animal Medicine11 citations
Semantic Scholar
Assessment of hydromorphone and dexmedetomidine for emesis induction in cats.
M. Nystrom, A. Odunayo, C. Okafor
2019Journal of Veterinary Emergency and Critical Care11 citations
Semantic Scholar
A survey of antimicrobial use practices of Tennessee beef producers
J. E. Ekakoro, M. Caldwell, E. Strand, L. Strickland +1 more
2019BMC Veterinary Research10 citations Open access
Semantic Scholar
Prevalence of Tritrichomonas foetus in tennessee bulls.
C. Okafor, L. Strickland, B. M. Jones, S. Kania +2 more
2017Veterinary parasitology10 citations Open access
Semantic Scholar
Effect of veterinary feed directive rule changes on tetracycline-resistant and erythromycin-resistant bacteria (Salmonella, Escherichia, and Campylobacter) in retail meats in the United States
Shamim Sarkar, C. Okafor
2023PLoS ONE9 citations Open access
Semantic Scholar
Factors associated with hematuric struvite crystalluria in cats
C. Okafor, D. Pearl, S. Blois, S. Lefebvre +3 more
2018Journal of feline medicine and surgery9 citations
Semantic Scholar
Evaluation of the interferon-γ assay on blood collected at exsanguination of cattle under field conditions for surveillance of bovine tuberculosis.
C. Okafor, Daniel L. Grooms, Steve Bolin, J. Averill +1 more
2014Transboundary and Emerging Diseases7 citations
Semantic Scholar
Assessment of statewide and within-herd seroprevalence of Anaplasma marginale antibodies in 12 Bos taurus–Bos indicus cow herds and the association with sporadic outbreaks of bovine anaplasmosis in Florida
A. Curtis, B. Whitlock, J. A. Daniel, C. Okafor +2 more
2021Applied Animal Science6 citations Open access
Semantic Scholar
Impact of Veterinary Feed Directive Rules Changes on the Prevalence of Antibiotic Resistance Bacteria Isolated from Cecal Samples of Food-Producing Animals at US Slaughterhouses
Shamim Sarkar, C. Okafor
2024Pathogens5 citations Open access
Semantic Scholar
Prevalence of Cardiac Lesions in Cases of Bovine Blackleg in Tennessee (USA), 2004–2018
C. Okafor, F. Uzal, C. Culligan, K. Newkirk
2023Veterinary Sciences5 citations Open access
Semantic Scholar
Species misidentification in local markets: Discrepancies between reporting and molecular identification of bushmeat species in northern Uganda
B. Dell, C. Masembe, R. Gerhold, Adam S. Willcox +2 more
2021One Health5 citations Open access
Semantic Scholar
Ammonia concentrations in canine whole blood, EDTA-anticoagulated whole blood, and plasma measured by use of a point-of-care ammonia meter.
A. Odunayo, K. Tobias, C. Okafor, B. Flatland
2017American Journal of Veterinary Research4 citations
Semantic Scholar
Residues of Tetracycline, Erythromycin, and Sulfonamides in Beef, Eggs, and Honey from Grocery Stores in Knoxville, Tennessee, USA: Failure of Cooking to Decrease Drug Concentrations
Shamim Sarkar, Stephen A. Kania, Mohamed A. Abouelkhair, B. Whitlock +1 more
2024Veterinary Sciences3 citations Open access
Semantic Scholar
Assessment of seroprevalence and associated risk factors for anaplasmosis in North Carolina, USA, beef and dairy cattle
C. Okafor, Samantha L. Collins, J. A. Daniel, J. Coetzee +1 more
2023Applied Animal Science3 citations Open access
Semantic Scholar
The influence of storage time and temperature on propofol concentrations in canine blood and plasma
S. Cox, Joan E. Bailey, C. Okafor, R. Seddighi +1 more
2017PeerJ3 citations Open access
Semantic Scholar
Effect of transportation, time of sampling, and lymphocyte numbers on gamma interferon response to Mycobacterium bovis in cattle at time of slaughter
C. Okafor, D. Grooms, S. Bolin, Tara Gravelyn +1 more
2013Journal of Veterinary Diagnostic Investigation3 citations Open access
Semantic Scholar
Detection of interferon-γ response to tuberculosis in blood collected at commencement of exsanguination at slaughter from cattle sensitized with Mycobacterium bovis.
C. Okafor, D. Grooms, S. Bolin, J. Kaneene
2012American Journal of Veterinary Research3 citations Open access
Semantic Scholar
Operator experience and easily identifiable veins predict first-time intravenous catheterization success rates in dogs in an emergency room.
Leaundra Singleton, Lucy Sumners, Britny Chunn, Amyia Jupiter +3 more
2025Journal of the American Veterinary Medical Association2 citations
Semantic Scholar
Integrated slaughterhouse and diagnostic surveillance to characterize bovine anaplasmosis in Tennessee cattle (USA).
C. Okafor, A. A. Andrews, J. Beever, K. Reif +3 more
2026Preventive Veterinary Medicine1 citations
Semantic Scholar
The cephalic vein is readily accessible for vascular access in pediatric patients less than 12 weeks presenting to an emergency room
Alexandra L. Zilberfarb, A. Odunayo, Prathima Garudadri, Ashley Allen-Durrance +1 more
2025Frontiers in Veterinary Science1 citations Open access
Semantic Scholar
State-Level Geographic Disparities and Temporal Patterns in Milk Somatic Cell Counts Across the United States, 2011–2023
J. Vidlund, A. Odoi, Russell Zaretzki, C. Okafor
2025Dairy1 citations Open access
Semantic Scholar
The effect of changing COVID-19 restrictions on the transmission rate in a veterinary clinic
Lee Spence, David E. Anderson, I. Aslan, M. Demir +3 more
2023Infectious Disease Modelling1 citations Open access
Semantic Scholar
Emotive Themes from Tennessee Cattle Producers Regarding Responsible Antibiotic Use
C. Okafor, J. E. Ekakoro, M. Caldwell, E. Strand
2022Animals1 citations Open access
Semantic Scholar
Determinants of antimicrobial use practices among veterinary clinicians at The University of Tennessee Veterinary Medical Center
J. E. Ekakoro, C. Okafor
20171 citations Open access
Semantic Scholar
Descriptive Epidemiology of Bovine Tuberculosis in Michigan (1975-March 2010)
C. Okafor, D. Grooms, C. Bruning-Fann, J. Averill +1 more
2010American Association of Bovine Practitioners Conference Proceedings1 citations Open access
Semantic Scholar
Most dogs transported to a veterinary teaching hospital are unrestrained during vehicular travel.
Connor Steinolfson, A. Odunayo, Zenithson Ng, Amy E. S. Stone +7 more
2026American Journal of Veterinary Research0 citations Open access
Semantic Scholar
From fatal bovine theileriosis to herd-level detection: Distribution of Theileria orientalis Ikeda within a multi-farm beef cattle operation in East Tennessee, USA
C. Okafor, M. Graves, B. Whitlock
2026Veterinary Parasitology: Regional Studies and Reports0 citations
Semantic Scholar
Effect of vein characteristics and operator experience on intravenous catheter insertion success in cats in an emergency room
C. Okafor, Lucy Sumners, Britny Chunn, Amyia Jupiter +2 more
2026Journal of feline medicine and surgery0 citations Open access
Semantic Scholar
Intrinsic and management-related factors associated with bull breeding soundness examination failure: a retrospective study
C. Okafor, Lew G. Strickland, B. Whitlock
2026Clinical Theriogenology0 citations Open access
Semantic Scholar
Evaluating milk quality indicators in the era of antimicrobial stewardship: A study of tennessee dairy farms (2011–2023)
Roderick T. Salvador, J. Vidlund, C. Okafor
2025PLoS ONE0 citations Open access
Semantic Scholar

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