Beta-hemolytic Streptococcus spp. from horses: a retrospective study (2000-2010)

Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc
Erdal ErolCraig N Carter

Abstract

The goal of this retrospective study was to have a comprehensive picture of the β-hemolytic streptococci of horses including tissue/organ distributions and susceptibility patterns against specific antimicrobials between January 1, 2000 and December 31, 2010. A total of 2,497 β-hemolytic streptococci were isolated from 2,391 cases, of which Streptococcus equi subsp. zooepidemicus was the most frequent isolate (72.0%). Other species isolated were Streptococcus dysgalactia subsp. equisimilis (21.3%), Streptococcus equi subsp. equi (5.8%), and unidentified β-hemolytic streptococci (0.9%). As expected, S. equi was mostly isolated from lymph node abscesses and the respiratory tract in foals and adult horses. Streptococcus equi subsp. zooepidemicus and S. equisimilis were mostly isolated from placenta, fetal tissues, and genital tract of horses; S. zooepidemicus and S. equisimilis were also recovered in significant numbers from a number of other organs including lung, liver, brain, kidney, and joints, indicating a much broader tissue tropism than S. equi. In addition, more than 1 Streptococcus spp. was recovered in 106 cases, indicating the co-existence of these bacteria in some horses. This data also suggested that S. equisimilis is ...Continue Reading

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Citations

Aug 21, 2015·Journal of Veterinary Internal Medicine·L J Toombs-RuaneS M Rosanowski
Feb 2, 2013·Equine Veterinary Journal·M Bowen
Jan 15, 2015·Journal of Veterinary Emergency and Critical Care·Bettina Dunkel, Imogen C Johns
Jan 30, 2015·The Veterinary Record·I C Johns, E-L Adams
May 13, 2014·Comparative Immunology, Microbiology and Infectious Diseases·S PreziusoM Ramirez
Mar 23, 2017·The Veterinary Clinics of North America. Equine Practice·Mandy L Cha, Lais R R Costa
Jul 7, 2017·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·Francisco R CarvalloRick M Arthur
Apr 30, 2019·Equine Veterinary Journal·C BourélyA Leblond
Jun 14, 2020·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·Panchan SitthicharoenchaiEric Burrough
May 24, 2020·The Veterinary Record·Joana D FonsecaTimothy D McHugh
Dec 1, 2020·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·Ka Y YuenAllison J Stewart
Jun 23, 2018·Microbiology Spectrum·Luca GuardabassiScott Weese

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