Table 3.
Classification of disease severity using radiographic, lung lesion and CT scores
|
a) Classification of pigs based on disease severity assessed by CT score and radiographic score on day 7 post challenge | |||||
| CT score on day 7 post challenge |
radiographic score* on day 7 post challenge |
||||
| not affected 0–4 |
slightly affected 5–15 |
moderately affected 16–26 |
severely affected > 26 |
Total |
|
| severely affected (≥2.23) |
0 |
5 (17. 2%) |
2 (6.9%) |
2 (6.9%) |
9 (31.0%) |
| moderately affected (1.71–2.22) |
0 |
0 |
2 (6.9%) |
0 |
2 (6.9%) |
| slightly affected (0.24–1.70) |
3 (10.3%) |
4 (13.8%) |
1 (3.5%) |
0 |
8 (27.6%) |
| not affected (0–0.23) |
8 (27.6%) |
2 (6. 9%) |
0 |
0 |
10 (34.5%) |
| Total |
11 (37.9%) |
11 (37.9%) |
5 (17.3%) |
2 (6.9%) |
29 (100.00%) |
|
b) Classification of pigs based on disease severity assessed by CT score and radiographic score on day 21 post challenge | |||||
| CT score on day 21 post challenge |
radiographic score* on day 21 post challenge |
||||
| not affected 0–4 |
slightly affected 5–15 |
moderately affected 16–26 |
severely affected > 26 |
Total |
|
| severely affected (≥ 2.23) |
0 |
0 |
2 (7.4%) |
0 |
2 (7.4%) |
| moderately affected (1.71–2.22) |
1 (3.7%) |
2 (7.4%) |
0 |
0 |
3 (11.1%) |
| slightly affected (0.24–1.70) |
1 (3.7%) |
7 (26.0%) |
2 (7.4%) |
0 |
10 (37.1%) |
| not affected (0–0.23) |
8 (29.6%) |
4 (14.8%) |
0 |
0 |
12 (44.4%) |
| Total |
10 (37.0%) |
13 (48.2%) |
4 (14.8%) |
0 |
27 (100.00%) |
|
c) Classification of pigs based on disease severity assessed by CT score and lung lesion score | |||||
| CT score on day 21 post challenge |
lung lesion score** on day 21 post challenge |
||||
| not affected 0 |
slightly affected 0.1–5.0 |
moderately affected 5.1–10.0 |
severely affected > 10 |
Total |
|
| severely affected (≥ 2.23) |
0 |
0 |
0 |
4 (13.8%) |
4 (13.8%) |
| moderately affected (1.71–2.22) |
0 |
0 |
3 (10.4%) |
0 |
3 (10.4%) |
| slightly affected (0.24–1.70) |
0 |
7b (24.1%) |
3 (10.3%) |
0 |
10 (34.4%) |
| not affected (0–0.23) |
10a (34.5%) |
1b (3.5%) |
1b (3.4%) |
0 |
12 (41.4%) |
| Total |
10 (34.5%) |
8 (27.6%) |
7 (24.1%) |
4 (13.8%) |
29 (100.0%) |
|
d) Classification of pigs based on disease severity assessed by radiographic score and lung lesion score | |||||
| radiographic score* on day 21 post challenge |
lung lesion score** on day 21 post challenge |
||||
| not affected 0 |
slightly affected 0.1–5.0 |
moderately affected 5.1–10.0 |
severely affected > 10 |
Total |
|
| severely affected>26 |
0 |
0 |
0 |
2 (6.9%) |
2 (6.9%) |
| moderately affected16–26 |
0 |
1 (3.5%) |
1 (3.5%) |
2 (6.9%) |
4 (13.8%) |
| slightly affected5–15 |
4 (13.8%) |
5b (17.2%) |
4 (13.8%) |
0 |
13 (44.8%) |
| not affected0–4 |
6a (20.7%) |
2b (6.9%) |
2b (6.9%) |
0 |
10 (34.5%) |
| Total | 10 (34.5%) | 8 (27.6%) | 7 (24.1%) | 4 (13.8%) | 29 (100.00%) |