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Risk factors associated with seroprevalence of Chlamydia abortus in sheep farms in Ceará, Brazil

Lima, Ana Milena César; Alves, Francisco Selmo Fernandes; Pinheiro, Raymundo Rizaldo; Alves, Samilly Mesquita; Farias, Daniele Alves de; Andrioli, Alice; Eloy, Angela Maria Xavier; Santos, Maria Dalila dos; Cardoso, Janaina de Fatima Saraiva; Paula, Ney Rômulo de Oliveira.
Acta sci. vet. (Online); 49: Pub. 1784, Jan. 28, 2021. tab
Artigo em Inglês | VETINDEX | ID: vti-29823

Resumo

Background: Chlamydia abortus infections (Chlamydiosis) can cause reproductive problems in sheep, such as abortionsand birth defects, leading to farm productivity loss. The symptoms, which are similar to other reproductive diseases, andthe microbial pathogenesis make the clinical diagnosis difficult. Chlamydia abortus is a zoonotic pathogen, making it apublic health issue because it can infect and induce abortions in humans. This study investigated anti-C. abortus antibodylevels and infection risk factors in sheep in the State of Ceará, Brazil.Materials, Methods & Results: Forty-three properties from 10 municipalities in 4 mesoregions in the State of Ceará, Brazil(Sertões, metropolitan Fortaleza, North Ceará and Northwest Ceará) with sheep, goats, cattle, and horses were visited.Five hundred and four serological samples from sheep were collected and tested for anti-C. abortus antibodies using anEnzyme-linked Immunosorbent Assay (ELISA) [IDEXX®, Australia] and all procedures were performed in accordancewith the manufacturers instructions at the Clinical Pathology Laboratory of EMBRAPA Goats and Sheep (Sobral, Brazil). Individual questionnaires were completed about sheep breeding practices and to identify possible C. abortus risks.Seropositive results were found in 18.45 % (93/504 individuals) of sheep, and 88.37 % (38/43 properties) of the herds hadat least one seropositive animal. The number of seropositive individuals was significantly different between adults andewes [P < 0.01; Odds Ratio (OR) = 0.510; 95% confidence interval (CI) = 0.306 - 0.850]. Logistic regression modelingidentified a missing health certificate request for newly acquired animals as a chlamydiosis risk factor [P = 0.038; OR =2.672; 95% CI = 1.058 - 6.749].Discussion: The prevalence of anti-C. abortus...(AU)
Biblioteca responsável: BR68.1
Localização: BR68.1