Abstract

ABSTRACT: Bovine genital campylobacteriosis (BGC) is a venereal disease caused by Campylobacter fetus subsp. venerealis. In countries with large cattle herds, such as Brazil, where the use of natural breeding as a reproductive strategy is a common practice, BGC is considered an important cause of reproductive failure and economic losses. In these cases, the bull is the asymptomatic carrier of the bacterium and the infected females can have infertility and even abortions. The techniques for the diagnosis of C. fetus are isolation in culture medium and identification by biochemical tests, immunofluorescence, immunoenzymatic assays and molecular techniques. Disease control is based on vaccination with bacterins. This review described the epidemiology, etiology, pathogenesis, and advances in the diagnosis and control of BGC.

Highlights

  • Bovine genital campylobacteriosis is caused by the microaerophilic bacterium Campylobacter fetus subsp. venerealis, a gram-negative rod

  • In a study by FIGUEIREDO et al (2002), the direct fluorescence antibody test (FAT) (DFAT) demonstrated good detection limits (100 CFU/mL) in preputial washes, with 92.59% sensitivity and 88.89% specificity. These results demonstrated the use of DFATs as an important support technique for the control of Bovine genital campylobacteriosis (BGC)

  • Enzyme-linked immunosorbent assay (ELISA) In the diagnosis of BGC, ELISA could be used for evaluating herd immunity, but is not acceptable for diagnosis of the infection in individual animals, and cannot differentiate between infections caused by the two subspecies of C. fetus that causes disease in ruminants (OIE, 2017)

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Summary

Introduction

Bovine genital campylobacteriosis is caused by the microaerophilic bacterium Campylobacter fetus subsp. venerealis, a gram-negative rod. Inconsistencies between phenotypic and genomic characteristics of C. fetus samples revealed in recent research (VAN DER GRAAF-VAN BLOOIS et al, 2014) have stimulated a critical evaluation of the clinical relevance of identification of C. fetus subspecies using phenotypic tests.

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