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Table 1 Detection of Treponema-like spirochetes from gingival samples of challenge pigs (A-E) and control pigs (F-H) by phase contrast microscopy of FAB + Aa broth cultures

From: Experimental inoculation of Treponema pedis T A4 failed to induce ear necrosis in pigs

Day 0 7 14 21 29 35 42 49 56
Age 5 wb 6 w 7 w 8 w 9 w 10 w 11 w 12 w 13 w
Pig A + +
Pig B ntc nt nt nt nt nt nt
Pig C + + + + + +
Pig D + + + + +
Pig E + + +
Pig F + + + + + +
Pig G + + + +
Pig H + +
  1. aFAB + A = Fastidious anaerobe broth with addition of glucose, thiamine pyrophosphate, volatile fatty acids, fetal calf serum, enrofloxacin and rifampicin [8]
  2. bw = weeksc nt = not tested