Table 2.
Absolute and relative frequencies of infective agents as single infections and in co-infection with other pathogens in samples. Only the column of single infections is indicative of a single agent detection. The sum of columns reporting the association with other pathogens does not equal the total number of cases, because they include single and multiple coinfections. A complete matrix with single frequencies of coinfection between conventional pathogens and each PPV is reported in Table S5.
| Association with | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Infective Agent | Total Cases | Single Infections | Grouped PPV2–7 | PRRSV-1 | PCV-2 | PCV-3 | E. coli | Strept. spp.* | S. aureus | L. interrogans | Chlamydia spp. |
| n (%) 1 | n (%) 2 | n (%) 2 | n (%) 2 | n (%) 2 | n (%) 2 | n (%) 2 | n (%) 2 | n (%) 2 | n (%) 2 | n (%) 2 | |
| PPV1 | 67 (19.8) | 33 (49.3) | 16 (23.9) | 6 (9.0) | 7 (10.4) | 17 (25.4) | 4 (6.0) | 4 (6.0) | 1 (1.5) | 2 (3.0) | 1 (1.5) |
| PPV2 | 3 (0.9) | 0 (0.0) | 2 (66.7) | 1 (33.3) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) |
| PPV3 | 4 (1.2) | 0 (0.0) | 2 (50.0) | 1 (25.0) | 2 (50.0) | 1 (25.0) | 1 (25.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) |
| PPV4 | 15 (4.4) | 4 (26.7) | 4 (26.7) | 2 (13.3) | 4 (26.7) | 1 (6.7) | 2 (13.3) | 1 (6.7) | 0 (0.0) | 0 (0.0) | 1 (6.7) |
| PPV5 | 38 (11.2) | 11 (28.9) | 11 (28.9) | 5 (13.2) | 8 (21.1) | 7 (18.4) | 1 (2.6) | 3 (7.9) | 0 (0.0) | 2 (5.3) | 0 (0.0) |
| PPV6 | 31 (9.2) | 7 (22.6) | 13 (41.9) | 6 (19.4) | 5 (16.1) | 7 (22.6) | 0 (0.0) | 4 (12.9) | 0 (0.0) | 1 (3.2) | 0 (0.0) |
| PPV7 | 20 (5.9) | 7 (35.0) | 5 (25.0) | 2 (10.0) | 5 (25.0) | 3 (15.0) | 2 (10.0) | 1 (5.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) |
| Grouped PPV2–7 | 90 (26.6) | 37 (41.1) | 15 (16.7) | 19 (21.1) | 16 (17.8) | 6 (6.7) | 7 (7.8) | 0 (0.0) | 3 (3.3) | 1 (1.1) | |
| PRRSV-1 | 58 (17.2) | 26 (44.8) | 15 (25.9) | 6 (10.3) | 8 (13.8) | 5 (8.6) | 2 (3.4) | 0 (0.0) | 0 (0.0) | 1 (1.7) | |
| PCV-2 | 58 (17.2) | 26 (44.8) | 19 (32.8) | 6 (10.3) | 8 (13.8) | 3 (5.2) | 3 (5.2) | 0 (0.0) | 1 (1.7) | 2 (3.4) | |
| PCV-3 | 63 (18.6) | 18 (28.6) | 16 (25.4) | 8 (12.7) | 8 (12.7) | 5 (7.9) | 4 (6.3) | 0 (0.0) | 2 (3.2) | 3 (4.8) | |
| E. coli | 22 (6.5) | 6 (27.3) | 6 (27.3) | 5 (22.7) | 3 (13.6) | 5 (22.7) | 3 (13.6) | 0 (0.0) | 1 (4.5) | 1 (4.5) | |
| Streptococcus spp. | 20 (5.9) | 4 (20.0) | 7 (35.0) | 2 (10.0) | 3 (15.0) | 4 (20.0) | 3 (15.0) | 0 (0.0) | 2 (10.0) | 1 (5.0) | |
| S. aureus | 1 (0.3) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | |
| L. interrogans | 6 (1.8) | 1 (16.7) | 3 (50.0) | 0 (0.0) | 1 (16.7) | 2 (33.3) | 1 (16.7) | 2 (33.3) | 0 (0.0) | 0 (0.0) | |
| Chlamydia spp. | 12 (3.6) | 6 (50.0) | 1 (8.3) | 1 (8.3) | 2 (16.7) | 3 (25.0) | 1 (8.3) | 1 (8.3) | 0 (0.0) | 0 (0.0) | |
1 = relative frequencies refer to the total number of tested sows (n = 338); 2 = relative frequencies of other column refer to total cases for that infective agent; * = Streptococcus spp. includes S. suis and S. pyogenes.