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Table 1 Number of pigs positive for Brachyspira spp. using culture and PCR at five sampling periods in the cohort study on farms A and C

From: The use of ELISAs for monitoring exposure of pig herds to Brachyspira hyodysenteriae

   Age in weeks
Farma   6 10 14 18 22
  B. hyodysenteriae 0 0 NT 0 0
A B. pilosicoli 0 0 NT 0 0
(20 pigs) B. innocens 0 8 NT 2 1
  Other Brachyspira spp. 1 4 NT 2 2
C B. hyodysenteriae 0 0 0 0 0
(30 pigs) B. pilosicoli 0 2 0 0 0
  B. innocens 0 0 4 3 0
  Other Brachyspira spp. 9 6 1 1 3
  1. aFarm A free of infection with B. hyodysenteriae. Farm C infected with B. hyodysenteriae; NT, not tested