Coinfection with Entamoeba polecki and Brachyspira hyodysenteriae in a pig with severe diarrhea

Maria Cuvertoret-Sanz, Christiane Weissenbacher-Lang, Madeleine Lunardi, René Brunthaler, Mònica Coma, Herbert Weissenböck, Joaquim Segalés

Research output: Contribution to journalArticleResearch

4 Citations (Scopus)


© 2019 The Author(s). Enteric disease in pigs is usually of multifactorial etiology, including infectious and non-infectious factors. In many cases of endemic diarrhea in weaner-to-finisher pigs, the combination of 2 or more microorganisms leads to aggravation of intestinal lesions and, consequently, clinical signs. We autopsied a 4-mo-old fattening pig with diarrhea and diagnosed severe fibrinonecrotizing typhlocolitis. Numerous spiral-shaped bacteria and amoeba-like PAS-positive protozoa were observed in the cecal and colonic mucosa and submucosa. Brachyspira hyodysenteriae was detected by PCR from colonic content. By in situ hybridization, large numbers of Entamoeba polecki were found within the lamina propria and submucosa; moderate numbers of Blastocystis sp. and scattered trichomonads were present in intestinal content. In addition, Entamoeba polecki, Balantidium spp., Blastocystis sp., and Trichomonas sp. were also detected by PCR.
Original languageEnglish
Pages (from-to)298-302
JournalJournal of Veterinary Diagnostic Investigation
Publication statusPublished - 1 Mar 2019


  • Brachyspira hyodysenteriae
  • diarrhea
  • Entamoeba polecki
  • fibrinohemorrhagic necrotizing colitis
  • pigs
  • swine dysentery


Dive into the research topics of 'Coinfection with Entamoeba polecki and Brachyspira hyodysenteriae in a pig with severe diarrhea'. Together they form a unique fingerprint.

Cite this