Publications by authors named "Byrum B"

Reports of raw meat pet food containing zoonotic foodborne bacteria, including Salmonella, Escherichia coli, and Listeria monocytogenes, are increasing. Contaminated raw pet food and biological waste from pets consuming those diets may pose a public health risk. The U.

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Background: Cobalt chloride (CoCl ) is administered to racehorses to enhance performance. The purpose of this study was to evaluate the clinical, cardiovascular, and endocrine effects of parenterally administered CoCl .

Objectives: To describe the effects of weekly intravenous doses of CoCl on Standardbred horses.

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Eleven laboratories collaborated to determine the periodic prevalence of in a population of dogs and cats in the United States visiting veterinary clinics. Fecal samples (2,965) solicited from 11 geographically dispersed veterinary testing laboratories were collected in 36 states between January 2012 and April 2014 and tested using a harmonized method. The overall study prevalence of in cats (3 of 542) was <1%.

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Article Synopsis
  • Porcine epidemic diarrhea virus (PEDV) was identified in the US in May 2013, spreading to more than 30 states and causing severe economic losses due to high mortality rates in newborn piglets.
  • In January 2014, a mild variant strain of PEDV, named OH851, was reported, showing milder intestinal lesions in infected piglets compared to the classical strain.
  • Genomic analysis indicates that the US variant PEDV OH851 is a recombinant strain, sharing characteristics with both European-like and US classical PEDV strains.
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First identified in 2012 in a surveillance study in Hong Kong, porcine deltacoronavirus (PDCoV) is a proposed member of the genus Deltacoronavirus of the family Coronaviridae. In February of 2014, PDCoV was detected in pigs with clinical diarrheal symptoms for the first time in the USA. Since then, it has been detected in more than 20 states in the USA and in other countries, including Canada, South Korea, and mainland China.

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Porcine epidemic diarrhea virus (PEDV) has caused significant economic losses in the US swine industry since May 2013. A new variant strain of PEDV emerged in the US in the late December, 2013. This variant strain of PEDV differs from the virulent strain of PEDV currently circulating in the US in 1170nt of the 5'end of the S1 domain in the spike gene.

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In Ohio, United States, in early 2014, a deltacoronavirus was detected in feces and intestine samples from pigs with diarrheal disease. The complete genome sequence and phylogenetic analysis of the virus confirmed that the virus is closely related to a porcine deltacoronavirus (porcine coronavirus HKU15) reported in Hong Kong in 2012.

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Porcine coronavirus HKU15 (PorCoV HKU15) was first detected in pigs with clinical diseases in February 2014 in the United States. Here, we report the complete genome sequence of Indiana strain IN2847, which might be useful for understanding the molecular profile of PorCoV HKU15.

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An H1N1 influenza A virus, A/swine/Ohio/24366/07, was isolated from pigs in an Ohio county fair. Twenty-six people who came in contact with the infected pigs developed respiratory disease and two of these people were laboratory confirmed as H1N1 by the Centers for Disease Control and Prevention (CDC). The A/swine/Ohio/24366/07 virus we isolated from swine was shown at the CDC to have 100% identical genome sequence to the human virus associated with the county fair.

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Helcococcus ovis is a newly established species in the genus Helcococcus. The clinical significance of this organism in sheep has not been reported. In the current report, isolation of H.

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Based on the authors' laboratory experience indicating that increased bacterial contamination in Mycobacterium avium ssp. paratuberculosis (MAP) cultures may be because of the addition of brain heart infusion broth (BHI) during the decontamination process, this study was designed to examine whether BHI is a required component for the isolation of MAP from ESP(R) broth cultures. Twenty-six National Veterinary Services Laboratory (NVSL) proficiency test samples supplied for the year 2005 were used for the comparison.

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A testing scheme for the detection of Mycobacterium avium subsp. paratuberculosis (MAP) in broth cultures of bovine fecal samples carried out in ESP para-JEM System was evaluated. The scheme included acid-fast staining (on signal-positive and signal-negative samples), and confirmation by PCR for 2 MAP-specific targets and subculture of all acid-fast positive PCR-negative samples.

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Five 34-wk-old turkey breeder layer flocks in separate houses of 2550 birds each in a single farm in Ohio experienced a drop in egg production from late January to early February 2004. Tracheal swabs (n = 60), cloacal swabs (n = 50), and convalescent sera (n = 110) from the flocks were submitted to the laboratory for diagnostics. Virus isolation was attempted in specific-pathogen free embryonating chicken eggs and Vero and MDCK cells.

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A liquid culture followed by molecular confirmation was evaluated for potential to improve sensitivity and reduce time to diagnosis of Mycobacterium avium subsp. paratuberculosis infection. Fecal samples from 240 animals from Ohio farms were assessed for presence of M.

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Specificity of six previously published Mycobacterium avium subsp. paratuberculosis (MAP) genomic loci, including 10, 38, 56, 93, 251, and 252 were evaluated in this study. Target 251 which was identified as MAP-specific was further evaluated in 210 MAP isolates, 14 non-MAP mycobacterial species, 7 atypical mycobacterial isolates, and 9 other bacterial species using real-time PCR.

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Five laboratories participated in a study to evaluate sources of variation in results from an enzyme-linked immunosorbent assay (ELISA) for antibodies against Mycobacterium avium subsp. paratuberculosis. Each laboratory repeatedly tested duplicates of a negative, positive (P), and high-positive (HP) serum sample, which were supplied by the United States Department of Agriculture: Animal and Plant Health Inspection Service: Veterinary Services, National Veterinary Services Laboratories, Ames, IA, on all 96-well microtiter plates when routinely testing other samples for M.

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Cultivation of Mycobacterium avium subsp. paratuberculosis (M. paratuberculosis) from feces remains the most reliable method to detect infected animals.

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A duplex polymerase chain reaction (PCR)-hybridization assay based on Mycobacterium avium subsp. paratuberculosis (MAP)-specific IS900 integration sites was used to evaluate two mycobacterial recovery methods from bovine feces: a direct-dilution-centrifugation method and a C(18)-carboxypropylbetaine (CB-18)-based method. All MAP PCR results were confirmed for absence of inhibitors using a novel PCR system based on the rpoB gene of plant chloroplasts as an internal control.

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The objectives of this study were to understand the molecular diversity of animal and human strains of Mycobacterium avium subsp. paratuberculosis isolated in the United States and to identify M. avium subsp.

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The combination of medium and growth conditions, including transport enrichment medium (TEM), transport time, TEM incubation time, and growth medium, that best support Campylobacter fetus subsp. venerealis while inhibiting contaminants was studied. The 3 TEMs evaluated, Weybridge, Cary-Blair, and 0.

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Objective: To estimate the prevalence of Mycobacterium avium subsp paratuberculosis infection among cows on beef operations in the United States.

Design: Cross-sectional seroprevalence study. Sample Population-A convenience sample of 380 herds in 21 states.

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Objective: To evaluate sensitivity and specificity of a new ELISA for antibodies against Mycobacterium avium subsp paratuberculosis.

Design: Cross-sectional observational survey.

Sample Population: Serum samples from 590 cattle that were infected with M avium subsp paratuberculosis and 723 cattle that were not infected.

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