Page 6 of articles about diarrhoea

Diarrhea with blood and mucus from a pig infected with Brachyspira hyodysenteriae

Brachyspira-associated colitis in swine

Two species of Brachyspira are well-recognized pathogens of pigs: B pilosicoli and B. hyodysenteriae. Recently, dysentery-like disease has been reported in association with infection by strongly beta-hemolytic spirochetes which are not identified as B. hyodysenteriae.