Korean J Vet Res.  2017 Dec;57(4):235-243. 10.14405/kjvr.2017.57.4.235.

Prevalence and pathologic study of porcine salmonellosis in Jeju

• Yang HS
• Kang SC
• Kim AR
• Jung BY
• Kim JH

• KMID: 2401293
• DOI: http://doi.org/10.14405/kjvr.2017.57.4.235

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.

Keyword

Salmonella infections; Salmonella Typhimurium; coinfection; paratyphoid nodule; ulcerative enteritis

MeSH Terms

Circovirus
Coinfection
Enteritis
Intestine, Large
Liver
Porcine respiratory and reproductive syndrome virus
Prevalence*
Salmonella
Salmonella Infections*
Salmonella typhimurium
Serotyping
Swine
Ulcer