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TableĀ 1 Brachyspira hyodysenteriae strains, experimental set-up and results for faecal excretion and clinical signs of SD

From: An avirulent Brachyspira hyodysenteriae strain elicits intestinal IgA and slows down spread of swine dysentery

Virulence trial number B. hyodysenteriae strain Strength of haemolysis Model and inoculation route Number of pigs positive for faecal excretiona Number of pigs with SDa
1 8dII Strong Direct oral inoculation 2/6 2/6
2 B204 Strong Direct gastric inoculation 5/9 5/9
3 49 Strong Seeder model 5/14 4/14
4 D28 Weak Direct oral inoculation 5/8 0/8
5 D28 Weak Direct gastric inoculation 4/12 0/12
Seeder vaccination experiment D28 Weak Direct oral inoculation 25/30 0/30
  1. aGiven as proportion of total number of inoculated pigs.