Ito Hirotaka, Hosokawa Kumiko, Kawamura Midori, Ito Naomi, Abeto Yusuke, Matsubayashi Makoto, Sasai Kazumi, Shibahara Tomoyuki
Hiroshima Prefectural Western Livestock Hygiene Service Center, 1-15 Saijogojocho, Higashihiroshima, Hiroshima 739-0013, Japan.
Hiroshima Prefectural Eastern Livestock Hygiene Service Center, 1-1-1 Miyoshicho, Hukuyama, Hiroshima 720-8511, Japan.
J Vet Med Sci. 2020 Apr 9;82(4):463-466. doi: 10.1292/jvms.19-0682. Epub 2020 Feb 26.
Piglets aged approximately 50 days exhibited diarrhea and wasting. Multiple white foci were detected in the colon of a dead piglet; histopathological findings revealed multifocal ulcers and crypt abscesses with Entamoeba trophozoites and gram-negative bacilli in the piglet. These pathogens were identified as Entamoeba polecki subtype 3 and Salmonella enterica serovar Typhimurium, respectively. Numerous E. polecki subtype 3 trophozoites were located on the edge of the ulcerative and necrotic lesions in the lamina propria. Crypt abscesses were associated with S. Typhimurium. These results suggest that E. polecki subtype 3 caused multifocal ulcerative colitis accompanied by crypt abscesses with S. Typhimurium in the piglet. This study is the first report of colitis with E. polecki subtype 3 and S. Typhimurium coinfection.
约50日龄的仔猪出现腹泻和消瘦症状。在一头死亡仔猪的结肠中检测到多个白色病灶；组织病理学检查结果显示，该仔猪存在多灶性溃疡和隐窝脓肿，伴有内阿米巴滋养体和革兰氏阴性杆菌。这些病原体分别被鉴定为波列基内阿米巴3型亚型和鼠伤寒沙门氏菌。大量波列基内阿米巴3型亚型滋养体位于固有层溃疡性和坏死性病变边缘。隐窝脓肿与鼠伤寒沙门氏菌有关。这些结果表明，波列基内阿米巴3型亚型在仔猪中引起多灶性溃疡性结肠炎，并伴有鼠伤寒沙门氏菌所致的隐窝脓肿。本研究是关于波列基内阿米巴3型亚型与鼠伤寒沙门氏菌共感染引起结肠炎的首次报道。
