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Streptococcus equisubspecies zooepidemicussepticemia in alpacas: three cases and review of the literature
- Source :
- Journal of Veterinary Diagnostic Investigation; July 2018, Vol. 30 Issue: 4 p598-602, 5p
- Publication Year :
- 2018
-
Abstract
- Streptococcus equisubspecies zooepidemicussepticemia of alpacas and llamas, also called alpaca fever, is characterized clinically by fever, depression, recumbency, and death, and pathologically by polyserositis. Although a few natural and experimental cases of the disease have been reported, very little information about the pathology of spontaneous cases has been published. We present a detailed gross and microscopic description of 3 spontaneous cases of alpaca fever and review the literature on this condition. Typical of spontaneous and experimental infections with S. equissp. zooepidemicus, the 3 animals had disseminated fibrinosuppurative polyserositis with vascular thrombosis and intralesional gram-positive cocci. In addition, 2 of the animals had severe fibrinosuppurative pneumonia, endocarditis, and myocardial necrosis; the third animal had transmural pleocellular enteritis with prominent lymphangitis. The enteric lymphangitis observed in the latter suggests that dissemination of S. equissp. zooepidemicusoccurred through lymphatic circulation and that, at least in this animal, the portal of entry of infection was the alimentary system.
Details
- Language :
- English
- ISSN :
- 10406387 and 19434936
- Volume :
- 30
- Issue :
- 4
- Database :
- Supplemental Index
- Journal :
- Journal of Veterinary Diagnostic Investigation
- Publication Type :
- Periodical
- Accession number :
- ejs46000218
- Full Text :
- https://doi.org/10.1177/1040638718772071