Figure 2From: An avirulent Brachyspira hyodysenteriae strain elicits intestinal IgA and slows down spread of swine dysentery PAS staining of formalin fixed colonic tissue samples of pigs infected with different B. hyodysenteriae strains. Colonic mucosa from A sham inoculated animal, B animal infected by strongly haemolytic B. hyodysenteriae strain 8dII (33 days post inoculation), C animal infected by weakly haemolytic B. hyodysenteriae strain D28 (32 days post inoculation).Back to article page