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http://dx.doi.org/10.14405/kjvr.2017.57.4.235

Prevalence and pathologic study of porcine salmonellosis in Jeju  

Yang, Hyoung-Seok (Jeju Self-Governing Provincial Veterinary Research Institute)
Kang, Sang-Chul (Optipharm Inc.)
Kim, Ae-Ran (Animal and Plant Quarantine Agency)
Jung, Byeong-Yeal (Animal and Plant Quarantine Agency)
Kim, Jae-Hoon (College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University)
Publication Information
Korean Journal of Veterinary Research / v.57, no.4, 2017 , pp. 235-243 More about this Journal
Abstract
Salmonella (S.) Typhimurium is highly contagious, and its infection may rapidly spread within pig populations of herd. According to the survey (1,191 pigs) from 2003 to 2012, 155 pigs (13.0%) were diagnosed as salmonellosis in Jeju. Major porcine salmonellosis cases (88.4%) were concentrated in 4- to 12-week-old weaned pigs, but 6 pigs (3.9%) under 4 weeks old were also diagnosed. Based on the histopathologic examinations, ulcerative enteritis (63.9%) in the large intestine and/or paratyphoid nodules formation (57.4%) in the liver were most prevalent lesions in porcine salmonellosis. Single infection of S. Typhimurium and mixed infection with more than 2 pathogens were detected in 38 (24.5%) and 117 (75.5%) in pigs, respectively. Co-infections of Porcine reproductive and respiratory syndrome virus and Porcine circovirus type 2 were very common in porcine salmonellosis in Jeju and detected in 84 (54.2%) and 59 (38.1%) pigs, respectively. Based on the serotyping tests using 41 bacterial isolates, S. Typhimurium and S. Rissen were confirmed in 39 (95.1%) and 2 (4.9%) cases, respectively.
Keywords
Salmonella infections; Salmonella Typhimurium; coinfection; paratyphoid nodule; ulcerative enteritis;
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