From: Assessment of exposure to influenza A viruses in pigs between weaning and market age
Variable | Study 1 | Study 2 | ||
---|---|---|---|---|
Median (IQR) | N positive± (%) | Median (IQR) | N positive (%) | |
H3N2_A* | ||||
1\\ | 10 (15) | 15 (18.5) | 40 (40) | 66 (88.0) |
2 | – | – | 10 (10) | 8 (10.8) |
3 | 80 (120) | 77 (97.4) | 5 (0) | 0 (0) |
4 (pigs in study) | 40 (60) | 35 (61.4) | 80 (0) | 37 (97.3) |
4\ | – | – | 80 (0) | 78 (98.7) |
H3N2_B* | ||||
1 | 40 (60) | 49 (60.4) | 160 (80) | 72 (96.0) |
2 | – | – | 40 (20) | 51 (68.9) |
3 | 80 (120) | 70 (88.6) | 20 (10) | 16 (21.9) |
4 (pigs in study) | 80 (40) | 52 (91.2) | 10 (10) | 8 (21.0) |
4 | – | – | 20 (70) | 38 (48.1) |
H3N2_C* | ||||
1 | 20 (30) | 39 (48.1) | 80 (120) | 61 (81.3) |
2 | – | – | 20 (30) | 20 (27.0) |
3 | 80 (1270) | 42 (54.4) | 10 (5) | 5 (6.8) |
4 (pigs in study) | 10 (5) | 1 (1.7) | 10 (5) | 2 (2.5) |
4 | – | – | 10 (5) | 2 (5.2) |
H3N2_H† | ||||
1 | 40 (140) | 60 (74.0) | 80 (120) | 67 (89.3) |
2 | – | – | 20 (30) | 19 (25.6) |
3 | 80 (120) | 63 (79.7) | 10 (5) | 3 (4.1) |
4 (pigs in study) | 20 (10) | 12 (21.0) | 5 (0) | 1 (2.6) |
4 | – | – | 5 (5) | 3 (3.8) |
H1N2‡ | ||||
1 | 40 (20) | 43 (53.0) | 80 (120) | 62 (82.6) |
2 | – | – | 20 (30) | 22 (29.7) |
3 | 10 (5) | 0 (0) | 5 (5) | 4 (5.4) |
4 (pigs in study) | 10 (5) | 1 (1.7) | 10 (0) | 1 (2.6) |
4 | – | – | 10 (0) | 3 (3.8) |
H1N1_C§ | ||||
1 | 10 (15) | 7 (8.6) | 10 (15) | 14 (18.6) |
2 | – | – | 5 (0) | 0 (0) |
3 | 5 (0) | 3 (3.8) | 5 (0) | 2 (2.7) |
4 (pigs in study) | 5 (0) | 0 (0) | 5 (5) | 1 (2.6) |
4 | – | – | 5 (5) | 1 (1.2) |
H1N1_P¶ | ||||
1 | 10 (15) | 15 (18.5) | 20 (30) | 24 (32.0) |
2 | – | – | 20 (10) | 15 (20.2) |
3 | 10 (5) | 1 (1.2) | 20 (30) | 33 (45.2) |
4 (pigs in study) | 10 (10) | 0 (0) | 40 (40) | 35 (92.1) |
4 | – | – | 40 (40) | 66 (83.5) |
H1N1_H† | ||||
1 | 40 (70) | 42 (51.8) | 20 (30) | 22 (29.3) |
2 | – | – | 5 (5) | 4 (5.4) |
3 | 20 (20) | 39 (49.3) | 80 (140) | 54 (73.9) |
4 (pigs in study) | 5 (5) | 0 (0) | 20 (30) | 15 (39.4) |
4 | – | – | 40 (60) | 45 (56.9) |