Soropositividade para Brucella canis: sinais clínicos e fatores associados à infecção em cães atendidos em um centro de diagnóstico por imagem da cidade do Rio de Janeiro. / Seropositivity to Brucella canis: Clinical Signs and Factors Associated with Infection in Dogs Admitted to an Image Diagnosis Center in the City of Rio de Janeiro

AUTOR(ES)
FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

26/02/2010

RESUMO

The aims of this study were to analyze the clinical signs and factors associated with the seropositivity to Brucella canis in dogs admitted to a veterinary diagnosis center in the city of Rio de Janeiro. Serum samples were collected from 841 dogs, whose participation in the study was allowed by their owners. The samples were analyzed by the Agar Gel Immunodiffusion Test. The dogs were clinically examined, whilst their owners were interviewed in order to obtain data on the animals and their raising. The associations between the explanatory variables and the infection were measured using the 2 test or Fisher exact test whenever necessary. All variables with p 0.20 at the bivariate analysis were included in the multivariable analysis by logistic regression. The backward elimination method was used to select the variables for statistical modeling. The level of significance to keep a variable in the final model was set at 5%. Seventeen (17) samples (2.0%) were reagent. The following variables were selected for the modeling: dogs with access to streets (p=0.03), ectoparasite infestation (p=0.03) tick infestation (p=0.005), reproductive activity (p=0.00001), contact with animals with reproductive problems (p=0.0009), sunlight (p=0.09), owner`s gender (p=0.16) and housing (p=0.12.In the final model, the variables tick infestation (OR= 5.47, IC 1.67- 17.86), reproductive activity (OR= 9.40, IC 2.88-30.65), contact with animals with reproductive problems (OR= 7.90, IC 2.18-28.64) and presence of sunlight inside the house (OR= 0.21, IC 0.06-0.64) remained statistically associated with seropositivity to B. canis, after confusing variables were controlled.. The clinical signs associated with the infection were abortion, scrotal dermatitis, eye alterations and presence of nodules. The results of this study suggest that canine brucellosis is a rare disease also in other similar populations, being linked to the variables associated with animal handling. This reconfirms the need of a good sanitary and reproductive management to prevent and control the disease. The detection of clinical signs associated with seropositivity to B. canis highlights the importance of a good anamnesis, as well as a detailed clinical examination of the dog upon its admittance to clinics.

ASSUNTO(S)

fatores de risco regressão logística epidemiologia medicina veterinaria risk factors logistic regression epidemiology

ACESSO AO ARTIGO

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