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Table 1 Pathological and bacteriological findings in pigs inoculated with Mycobacterium avium subsp.

From: A comparative study of Mycobacterium avium subsp. avium and Mycobacterium avium subsp. hominissuisin experimentally infected pigs

  Mycobacterium aviumsubsp. hominissuis
Time after inoculation 6 weeks 8 weeks 12 weeks
Animal no #1 #2 #3 #4 #5 #6 #7 #8 #9 #10
  m h c p m h c p m h c p m h c p m h c p m h c p m h c p m h c p m h c p m h c p
Lnn. mandibulares - - + + - - + - - - + - - - + + - - + - - - + + + +* + - - + + + + +* + + - +* + +
Tonsils - +* + + - - + + - - + + - - + + - - + + - - + - - - + - - - C + - +* + + - +* + -
Lnn. bifurcationis sinn. - - + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + - - - +
Lung - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + - nd - - - -
Spleen - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + - - - nd - - - +
Liver - - - - - + - - - - - - - - - - - - - - - - - - - + - - - + - + + +* - nd - - - +
Lnn. jejunales - - + + - - + + - +* + + - - + + - +* - - - +* + + + +* + + + +* + + + +* + nd - +* + -
Lnn. ileocolici - - + - - - + + - - - - - - + - - - - - - - + - + +* + + - +* + + + +* + nd - + - -
Lnn. colici - - + - - - + + - - - - - - - - - - - - - - + - - - - - + +* + + + +* + nd - - - -
Jejunal Peyer's patches - - + - - - - - - - - - - - + + - - + - - - - nd - + - - - + - - - + - nd - - - -
Ileal Peyer's patches - - + + - - + - - - + - - + + + - - - - - - + nd - + - - - - - - - +* - nd - + - -
Faeces nd nd + nd nd nd + nd nd nd + nd nd nd + nd nd nd - nd nd nd + nd nd nd - nd nd nd - nd nd nd - nd nd nd - nd
  Mycobacterium avium subsp. avium
Time after inoculation 6 weeks 12 weeks
Animal no #11 #12 #13 #14 #15 #16 #17 #18 #19 #20
  m h c p m h c p m h c p m h c p m h c p m h c p m h c p m h c p m h c p m h c P
Lnn. mandibulares - +* + + - + + - - - + - - - - - - - + - - - + - - - + + - + + - - +* + - - +* + +
Tonsils - + - + - - - - - - - - - - - + - + - - - - - - - - - - - - - - - +* + + - +* + +
Lnn. bifurcationis sinn. - - - - - - - + - - - - - - - - - - - - - - - - - - - - - + - - - + - - - - - +
Lung - - - - - - - - - - - + - + - - - - - - - - - - - - - + - - - + - - - + - + - +
Spleen - + - - - - - - - - - - - - - - - - - + - - - - - - - + - - - - - - - + - - - +
Liver - - - - - - - - - - - - - - - - - - - - - - - + - - - + - - - - - + - - - - - +
Lnn. jejunales - - + + - - + - - - + - - - + - - - + + - - - - - - + - + +* + - + +* + + - + + +
Lnn. ileocolici + + + + - - + + - - - - - - + - - - + - - - - - - - - - - + + - + + + + - - + -
Lnn. colici - - - + - - + - - + - - - - - - - - + + - - + - - - + - - - - + - - - - - - + -
Jejunal Peyer's patches - - + + - - + - - + + - - - - - - - + - - - - - - - - - - + - + * + - + - - - +
Ileal Peyer's patches - - + + - +* + - - - + + - - - - - - + - - + + + - - - - - + + - - + - + - +* + -
Faeces nd nd - nd nd nd - nd nd nd - nd nd nd - nd nd nd - nd nd nd - nd nd nd - nd nd nd - nd nd nd - nd nd nd - nd
  1. hominissuis or Mycobacterium avium subsp. avium
  2. m = macroscopic examination. Positive when visible tuberculous lesions are present
  3. h = histopathological examination. Positive when granulomatous lesions present. * indicates the presence of acid-fast bacilli
  4. c = cultural examination: Positive when acid-fast staining, characteristic colonies are present
  5. p = real time PCR: Positive at Ct values ≤ 38
  6. nd = not done or not applicable
  7. C = contaminated