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Table 2 Histopathological lung lesions in calves inoculated with Mycoplasma bovis strain 1067 and in control calves

From: Chronic pneumonia in calves after experimental infection with Mycoplasma bovis strain 1067: Characterization of lung pathology, persistence of variable surface protein antigens and local immune response

Calf
No.
Bronchointerstitial
pneumonia1
Suppurative bronchitis and
bronchiolitis
Suppurative
bronchopneumonia
Caseonecrotic
pneumonia
Obliterative
Bronchiolitis
BALT hyperplaisia
1 +a +a +/++d -c -c ++b
2 +a +a +/++d -c -c ++/+++e
3 +a -c ++/+++e ++/+++e +++f ++/+++e
4 ++b +a -c -c -c +++f
5 +a +a +++f +++f +++f ++/+++e
6 +a +a -c -c -c +/++d
7 +a +a -c -c -c +/++d
8 +a -c ++b -c ++b ++/+++e
9 +a +a -c -c -c +/++d
10 +a -c +a -c -c +/++d
11 +a -c +a -c -c +/++d
12 +a -c +a -c -c +/++d
  1. 1Infiltration of alveolar septa with macrophages, lymphocytes and neutrophilic granulocytes.
  2. aMild. bModerate. cNone. dMild to moderate. eModerate to severe. fSevere.