Table 1 Macroscopic and microscopic findings in lungs of mock-infected pigs and pigs infected with Actinobacillus pleuropneumoniae
Pig | Infection | Day of necropsy after infection | Macroscopic lung lesion score[17] | Histological findings |
|---|---|---|---|---|
1 | mock | 21 | 0 | Predominantly without pathological findings, small areas with slight interstitial pneumonia |
2 | mock | 21 | 3.6 | Predominantly without pathological findings, small areas with slight interstitial pneumonia |
3 | mock | 21 | 0 | Predominantly without pathological findings, small areas with slight interstitial pneumonia |
4 | A.pp. serotype 7 strain AP76 | 1 | 17.7 | Severe purulent and fibrinous pneumonia, moderate interstitial pneumonia |
5 | A.pp. serotype 7 strain AP76 | 21 | 12.3 | Severe catarrhal and purulent bronchopneumoniae with abscesses, slight interstitial pneumonia |
6 | A.pp. serotype 7 strain AP76 | 21 | 6.3 | Severe purulent pneumonia with abscesses and sequesters with colliquative necrosis |
7 | A.pp. serotype 7 strain AP76 | 21 | 0 | Predominantly without pathological findings, small areas with severe interstitial pneumonia |
8 | A.pp. serotype 7 strain AP76 | 21 | 4.4 | Moderate catarrhal and purulent bronchopneumonia with abscesses, moderate interstitial pneumonia |
9 | A.pp. serotype 7 strain AP76 | 21 | 0 | Most areas without pathological findings, small areas with severe interstitial pneumonia |
10 | A.pp. serotype 7 strain AP76 | 4 | 31.4 | Severe purulent and necrotic bronchopneumonia, fibrinous tissue alterations |
11 | A.pp. serotype 7 strain AP76 | 21 | 6.4 | Severe purulent pneumonia with fibrotic tissue alterations, moderate interstitial pneumonia |