Isolation of Actinobacillus seminis from a goat with clinical epididymo-orchitis in Brazil

Abstract

The present study reports the first isolation of Actinobacillus seminis from a goat in Brazil. A four-year-old Moxotó breeding goat in a flock of 70 goats and 65 sheep reared together in the county of Patos, semiarid region of Northeastern Brazil, showed clinical signs of unilateral orchitis and epididymitis. Diagnosis of A. seminis infection was confirmed by association of clinical findings, bacterial isolation and 16S rRNA gene sequencing. This result suggests that A. seminis may be an additional cause of infertility in goats, and that sheep may be the source of infection because the mixed farming system allows the contact between sheep and goats in the semiarid region of Northeastern Brazil.

Genome Sequence of Actinobacillus seminis Strain ATCC 15768, a Reference Strain of Ovine Pathogens That Causes Infections in Reproductive Organs

“…Actinobacillus seminis is a Gram-negative bacterium, a member of the Pasteurellaceae family, and a causal agent of epididymitis and testicular lesions in sheep, producing low rates of fertility and abortions ( 1 , 2 ) and consequent economic losses to the sheep industry ( 3 ). This bacterium is also known to affect other organisms, since it has been isolated from other ruminants ( 4 ).…”

A retrospective investigation into the outbreaks of abortions and orchitis in livestock in Namibia

“…(Saxena et al 2018) and Corynebacterium pseudotuberculosis can also cause epididymitis and orchitis (Bell 2006; Kováčová et al 2007;Stewart et al 2018;Umer Chhalgari et al 2017). Actinobacillus seminis is also known to cause epididymo-orchitis in both rams and bucks (Dos Santos et al 2014), while Salmonella enterica serovar Typhimurium caused epididymo-orchitis in a bull (Mahmoud et al 2020).…”