Life Sciences Commons^™

Seroprevalencia Y Factores De Riesgo De La Brucelosis En Perros De Los Estados Enugu Y Anambra, Nigeria, Chidiebere O. Anyaoha, Lynda O. Majesty-Alukagberie, Iniobong C I. Ugochukwu, John A. Nwanta, Boniface M. Anene, Steve I. Oboegbulam

Revista de Medicina Veterinaria

Se evaluó la seroprevalencia de los anticuerpos de Brucella canis y Brucella abortus en perros usando un sondeo transversal en los Estados Anambra and Enugu, Nigeria. Se examinó un total de 123 perros de compañía, de los cuales 65 eran perros de clínica, 34 perros de matadero y 24 perros caseros. Para el ensayo de anticuerpos de B. abortus, el suero muestreado se usó para la prueba de Rosa de Bengala (RBPT), prueba de aglutinación del suero (SAT) y se usó la técnica de inmunoensayo en fase sólida con el kit de prueba de anticuerpos para brucelosis canina Immunocomb®. De …

Hidden Cost Of Disease In A Free-Ranging Ungulate: Brucellosis Reduces Mid-Winter Pregnancy In Elk, Gavin C. Cotterill, Paul C. Cross, Arthur D. Middleton, Jared D. Rogerson, Brandon M. Scurlock, Johan T. Du Toit

Wildland Resources Faculty Publications

Demonstrating disease impacts on the vital rates of free‐ranging mammalian hosts typically requires intensive, long‐term study. Evidence for chronic pathogens affecting reproduction but not survival is rare, but has the potential for wide‐ranging effects. Accurately quantifying disease‐associated reductions in fecundity is important for advancing theory, generating accurate predictive models, and achieving effective management. We investigated the impacts of brucellosis (Brucella abortus) on elk (Cervus canadensis) productivity using serological data from over 6,000 captures since 1990 in the Greater Yellowstone Ecosystem, USA. Over 1,000 of these records included known age and pregnancy status. Using Bayesian multilevel models, …

Winter Feeding Of Elk In The Greater Yellowstone Ecosystem And Its Effects On Disease Dynamics, Gavin C. Cotterill, Paul C. Cross, Erik K. Cole, Rebecca K. Fuda, Jared D. Rogerson, Brandon M. Scurlock, Johan T. Du Toit

Wildland Resources Faculty Publications

Providing food to wildlife during periods when natural food is limited results in aggregations that may facilitate disease transmission. This is exemplified in western Wyoming where institutional feeding over the past century has aimed to mitigate wildlife–livestock conflict and minimize winter mortality of elk (Cervus canadensis). Here we review research across 23 winter feedgrounds where the most studied disease is brucellosis, caused by the bacterium Brucella abortus. Traditional veterinary practices (vaccination, test-and-slaughter) have thus far been unable to control this disease in elk, which can spill over to cattle. Current disease-reduction efforts are being guided by ecological …

Design And Humoral Analysis Of Two Epitope-Based Brucella Abortus Dna Vaccines, Michael Mcgee

LSU Master's Theses

Brucella is a genus of Gram negative, facultative intracellular pathogens which cause brucellosis, one of the most wide spread zoonotic diseases. Brucellosis causes a severe economic burden due to reproductive loss in animals and human infection. Vaccination of animals has proven to be the most effective means of controlling brucellosis; however the current live-attenuated vaccines are not considered ideal. The live-attenuated vaccines Brucella abortus Strain 19 and RB51 remain pathogenic to humans, and the former interferes with diagnostic tests due to induction of antibodies against the O-polysaccharide. DNA vaccination with single antigens has proven to be successful at protecting mice …

Distinctive Phenotypic And Molecular Characteristics Of Brucella Abortus Strains Isolated From Mongolia, Ji-Yeon Kim, Sung-Il Kang, Janchivdorj Erdenebaataar, Batbaatar Vanaabaatar, Gombosuren Ulziisaikhan, Ochirbat Khursbaatar, Kichan Lee, Jin Ju Lee, So-Ra Sung, Suk Chan Jung, Yong Ho Park, Han-Sang Yoo, Moon Her

Turkish Journal of Veterinary & Animal Sciences

Recently, some Brucella abortus were isolated from human and various livestock in Mongolia, and the classical biotyping and molecular detection methods (PCR assays, 16S rRNA sequencing analysis, and multilocus variable number tandem repeat analysis (MLVA)) were applied to investigate them. Of the 16 isolates, nine and seven were confirmed as biovar (bv.) 3 and untyped by the classical biotyping assay, respectively. The phenotypic characteristics of the untyped isolates were consistent with those of the former B. abortus bv. 7, which is not included in the current Brucella taxonomy. Additionally, genus- and species-specific PCR supported that the untyped Mongolian isolates belonged …

Brucellosis In The Greater Yellowstone Area: Disease Management At The Wildlife–Livestock Interface, Brant A. Schumaker, Dannelle E. Peck, Mandy E. Kauffman

Human–Wildlife Interactions

Elk (Cervus elaphus) and bison (Bison bison) of the Greater Yellowstone area are the last known reservoir of bovine brucellosis (Brucella abortus) in the United States. Domestic cattle occasionally contract the disease while grazing in areas where infected wild ungulates have aborted their fetuses or have given birth. Cases of brucellosis in cattle trigger costly quarantine, testing, and culling procedures. Government agencies and stakeholders, therefore, allocate valuable resources to prevent wildlife-to-cattle transmission. Scientific uncertainty about the biology, epidemiology, and economics of brucellosis makes it difficult to determine the length to which society should go to control it or the combination …

Pathological, Immunohistochemical, And Bacteriological Findings In The Mammary Glands And Supramammary Lymph Nodes Of Cows With A History Of Abortion Due To Brucella Abortus, Enver Beytut, Mi̇that Şahi̇n, Serpi̇l Ergi̇nsoy, Mahmut Sözmen

Turkish Journal of Veterinary & Animal Sciences

The present study examined the mammary glands and supramammary lymph nodes of cows with a history of abortion due to Brucella abortus, and presents the histopathological, immunohistochemical, and bacteriological results. The study included 11 Brucella-seropositive cows that aborted during their first gestation. Histopathologically, the mammary glands showed lymphoplasmacytic and histiocytic interstitial mastitis. The lymph nodes had lymphofollicular hyperplasia and medullary plasmacytosis. Immunohistochemistry results showed brucellar antigens, predominantly in the cytoplasm of macrophages, and neutrophils in the intralobular interstitium and periductal stroma in the udders of 3 cows. Desquamated alveolar epithelium also indicated intense immunopositivity. In the lymph nodes, macrophages containing …

Detection Of Antibodies Against Brucella Abortus In Bovine, Celso Arturo Moreno Paredes

Theses and Dissertations

The present investigation was made in the Laboratories of microbiology of the Ability of Cattle Sciences of the Polytechnic Superior School of Chimborazo, with samples obtained in the Municipal Camal Riobamba and the Community of Tunshi San Nicolás. The incidence of Brucellosis was analyzed in six more important cattle areas of the county using the antigens Brucella abortus and Rosa of Flare. The experimental units were obtained under a systematic sampling. The experiment had a duration of 4 months. The experimental results underwent the following analyses: variance, percentages, stockings, standard deviation, limit for the estimate error. According to carried out …

Brucellosis And Its Control With Strain 19 Vaccine, C R. Toop

Journal of the Department of Agriculture, Western Australia, Series 4

DAIRY farmers of a generation ago will not need to be reminded of the ravages of contagious abortion or of the need for the continued application of effective control measures.

Fifteen or 20 years ago this disease which we now call Brucellosis was rife throughout the dairying districts of the State and it exacted a heavy toll.

The "abortion storm" was a common occurrence and it was not unusual for 30 per cent., and sometimes considerably more, of the cows in a herd to lose their calves at about the sixth month of pregnancy.