Volume 67 (2017) Issue: 2017 No#3

Polyarthritis in goat-kids caused by Streptococcus equi subspecies zooepidemicus

Author(s): Cvetojević Đorđe, Radanović Oliver, Milićević Vesna, Jezdimirović Nemanja, Kureljušić Branislav

Keywords:goat-kids, polyarthritis, Streptococcus equi subspecies zooepidemicus

Infectious arthritides in goats is mainly caused by mycoplasmas and Caprine Arthritis-Encephalitis virus (CAEV). Streptococcus equi subspecies zooepidemicus (S. zooepidemicus) is a member of Lancefield group C beta-hemolytic streptococcus that commonly colonizes the mucous membranes of healthy equids which is also capable to induce different pathological conditions in many animal species. In this paper we described a case of polyarthritis in four Alpine goat-kids caused by S. zooepidemicus. Goat-kids originated from a farm where sheep, llamas, shepherd dogs, cows and horses were kept with goats. During the external examination of carcasses, crusts and discrete hyperemia were seen on the earlobes beneath the ear tag, as well as swollen joints. Necropsy findings included severe fibrinous polyarthritis in all four examined kids. Shoulder, knee and hip joints were affected. From all affected joints S. zooepidemicus was isolated. Neither Mycoplasma spp. nor CAEV genome were detected from the affected joints. Most likely the goat-kids were infected with S. zooepidemicus through the lesions on earlobes which were made after the tagging. As a possible source of bacteria, we recognized the horses and dogs. Due to the lack of any signs of illness in other animal species on the farm, as well as negative pathomorphological findings in other organs, we assumed that the isolated strain is highly adapted to goat-kids. Our report is the first described case of polyarthritis in goat-kids caused by S. zooepidemicus.


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ISSN: 0567-8315

eISSN: 1820-7448

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