Etiologic and epidemiologic analysis of bacterial infectious upper respiratory disease in Thoroughbred horses at the Seoul Race Park |
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| Authors: | Seung-Ho Ryu Hye Cheong Koo Young-Woo Lee Yong Ho Park Chang-Woo Lee |
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| Institution: | 1Korea Racing Authority, Gwacheon 427-711, Korea.;2Department of Microbiology, College of Veterinary Medicine and BK21 Program for Veterinary Science, Seoul National University, Seoul 151-742, Korea.;3Department of Clinical Pathology, College of Veterinary Medicine and BK21 Program for Veterinary Science, Seoul National University, Seoul 151-742, Korea. |
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| Abstract: | Infectious upper respiratory disease (IURD) of Thoroughbred racehorses has been a frequent problem (29.6% of incidence) at the Seoul Race Park (Korea). Risk factors for IURD include the season with a high transfer rate (summer and fall), the stabling period (≤ 3 months), and age (2 to 3 years old), suggesting that the movement and new environment may have depressed the immune system of the horses and decreased their ability to respond properly to pathogens. The bacterial strains (n = 98) isolated from IURD horses included Pseudomonas spp., Escherichia coli, Staphylococcus spp., Streptococcus equi subsp. equi and zooepidemicus. |
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| Keywords: | infectious upper respiratory disease risk factors Streptococcus equi subsp equi Streptococcus equi subsp zooepidemicus Thoroughbred racehorses |
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