Table 3.
Variable | Category | Number and percentage of isolates (n = 53) | Number cluster 6 (n = 27) | Number cluster 8 (n = 7) |
---|---|---|---|---|
State | Queensland | 36 (67.9%) | 24 (88.9%) | 6 (85.7%) |
New South Wales | 17 (32.1%) | 3 (11.1%) | 1 (14.3%) | |
Production | Meat/Feedlot | 41 (77.4%) | 23 (85.2%) | 6 (85.7%) |
Dairy | 5 (9.4%) | 1 (3.7%) | 1 (14.3%) | |
Unknown | 7 (13.2%) | 3 (11.1%) | 0 (0%) | |
Sample site | Lung | 38 (71.7%) | 19 (70.4%) | 6 (85.7%) |
Brain | 3 (5.7%) | 2 (7.4%) | 1 (14.3%) | |
Nasal | 5 (9.4%) | 1 (3.7%) | 0 (0%) | |
Other | 3 (5.7%) | 3 (11.1%) | 0 (0%) | |
Unknown | 4 (7.5%) | 2 (7.4%) | 0 (0%) | |
Year of isolation | 1989–1994 | 4 (7.5%) | 4 (14.8%) | 0 (0%) |
1995–2000 | 9 (17%) | 6 (22.2%) | 2 (28.6%) | |
2001–2005 | 9 (17%) | 7 (25.9%) | 2 (28.6%) | |
2006–2010 | 25 (47.2%) | 6 (22.2%) | 2 (28.6%) | |
2011–2012 | 2 (3.8%) | 1 (3.7%) | 1 (14.3%) | |
Unknown | 4 (7.5%) | 3 (11.1%) | 0 (0%) | |
Sex | Male | 13 (24.5%) | 8 (29.6%) | 1 (14.3%) |
Female | 11 (20.8%) | 4 (14.8%) | 2 (28.6%) | |
Unknown | 29 (54.7%) | 15 (55.6%) | 4 (42.9%) | |
Origin | Introduced | 23 (43.4%) | 13 (48.2%) | 4 (57.1%) |
Homebred | 7 (13.2%) | 5 (18.5%) | 0 (0%) | |
Unknown | 23 (43.4%) | 9 (33.3%) | 3 (42.9%) | |
Age (months) | 0–6 | 12 (22.6%) | 6 (22.2%) | 3 (42.8%) |
7–12 | 10 (18.9%) | 5 (18.5%) | 1 (14.3%) | |
13–18 | 15 (28.3%) | 7 (26%) | 2 (28.6%) | |
19–24 | 5 (9.4%) | 3 (11.1%) | 1 (14.3%) | |
Unknown | 11 (20.8%) | 6 (22.2%) | 0 (0%) | |
Other infections | IBRVa | 1 (1.8%) | 1 (3.7%) | 0 (0%) |
Coronavirus | 2 (3.7%) | 1 (3.7%) | 0 (0%) | |
Pestivirus | 1 (1.8%) | 0 (0%) | 1 (14.3%) | |
Negativeb | 13 (24.5%) | 9 (33.3%) | 1 (14.3%) | |
Not tested | 36 (67.9%) | 16 (59.3%) | 5 (71.4%) |
Infectious bovine rhinotracheitis virus.
Tested for at least one virus but all results were negative.