Characterization and Recognition of Brachyspira hampsonii sp. nov., a Novel Intestinal Spirochete That Is Pathogenic to Pigs [PDF]
ABSTRACT Swine dysentery (SD) is a mucohemorrhagic colitis of swine classically caused by infection with the intestinal spirochete Brachyspira hyodysenteriae . Since around 2007, cases of SD have occurred in North America associated with a different strongly beta-hemolytic spirochete that has been ...
Connie Gebhart, David Hampson, Tom La
exaly +5 more sources
Fecal shedding of Brachyspira spp. on a farrow-to-finish swine farm with a clinical history of “Brachyspira hampsonii”-associated colitis [PDF]
Abstract Background Brachyspira associated diarrhea is a re-emerging concern for Canadian swine producers. To identify critical control points for reducing the impact of Brachyspira on production, improved diagnostic tools and a better understanding of the on-farm epidemiology of these pathogens are ...
Matheus de Oliveira Costa +2 more
exaly +5 more sources
Molecular Epidemiology of Novel Pathogen “Brachyspira hampsonii” Reveals Relationships between Diverse Genetic Groups, Regions, Host Species, and Other Pathogenic and Commensal Brachyspira Species [PDF]
ABSTRACT Outbreaks of bloody diarrhea in swine herds in the late 2000s signaled the reemergence of an economically significant disease, swine dysentery, in the United States. Investigations confirmed the emergence of a novel spirochete in swine, provisionally designated “ Brachyspira hampsonii ,” with two ...
Yogesh Chander +2 more
exaly +5 more sources
Confirmation that “Brachyspira hampsonii” clade I (Canadian strain 30599) causes mucohemorrhagic diarrhea and colitis in experimentally infected pigs [PDF]
"Brachyspira hampsonii", discovered in North America in 2010 associated with dysentery-like illness, is an economically relevant swine pathogen resulting in decreased feed efficiency and increased morbidity, mortality and medication usage. "B. hampsonii" clade II strain 30446 has been shown to be causally associated with mucohemorrhagic diarrhea and ...
Matheus de Oliveira Costa +2 more
exaly +5 more sources
Differential expression of hemolysin genes in weakly and strongly hemolytic Brachyspira hyodysenteriae strains [PDF]
Background Swine dysentery (SD) is a diarrheal disease in fattening pigs that is caused by the strongly hemolytic species Brachyspira (B.) hyodysenteriae, B. hampsonii and B. suanatina. As weakly hemolytic Brachyspira spp. are considered less virulent or
Jessica Joerling +3 more
doaj +2 more sources
Characterization of “Brachyspira hampsonii” clades I and II isolated from commercial swine in Western Canada [PDF]
A novel Brachyspira emerged in 2009 and has since become a production-limiting pathogen of pigs in North America. The name “Brachyspira hampsonii” has been proposed for this novel taxon.
Jason Byron D.S. Perez +4 more
doaj +2 more sources
Comparison of the Luminal and Mucosa-Associated Microbiota in the Colon of Pigs with and without Swine Dysentery [PDF]
Colonic contents and mucosal scrapings from pigs inoculated with Brachyspira hyodysenteriae or Brachyspira hampsonii were collected at necropsy and classified as either positive (n = 29) or negative (n = 7) for swine dysentery (SD) based upon lesions and
Eric R. Burrough +3 more
doaj +2 more sources
An optimized swine dysentery murine model to characterize shedding and clinical disease associated with "Brachyspira hampsonii" infection. [PDF]
The development of a mouse model as an in vivo pathogenicity screening tool for Brachyspira spp. has advanced the study of these economically important pathogens in recent years. However, none of the murine models published to date have been used to characterize the clinical signs of disease in mice, instead focusing on pathology following oral ...
Ek CE +8 more
europepmc +3 more sources
Abstract Xenotransplantation has the potential to address shortages of organs available for clinical transplantation, but concerns exist regarding potential risks posed by porcine microorganisms and parasites (MP) to the health of human recipients. In this study, a risk‐based framework was developed, and expert opinion was elicited to evaluate porcine ...
Huybert Groenendaal +14 more
wiley +1 more source
First isolation of “Brachyspira hampsonii” from pigs in Europe [PDF]
Infections with Brachyspira species in swine occur in most swine-rearing countries and can result in substantial economic losses. Of all swine-related Brachyspira species Infections, classical swine dysentery, caused by Brachyspira hyodysenteriae , results in the most severe clinical symptoms (eg, mucohaemorrhagic diarrhoea, weight loss, poor feed ...
Mahu, Maxime +10 more
openaire +3 more sources

