Table 1.
Distribution of herd-periods1 according to their infection status with respect to bovine respiratory syncytial virus (BRSV) and bovine coronavirus (BCV)2
| BCV infection status1 |
||||||
|---|---|---|---|---|---|---|
| RI |
PSI |
FREE | ||||
| BRSV infection status1 | RI-Y | RI-N | PSI-Y | PSI-N | ||
| RI | RI-Y | 1 | 0 | 0 | 3 | 1 |
| RI-N | 4 | 1 | 1 | 5 | 1 | |
| PSI | PSI-Y | 2 | 0 | 0 | 0 | 1 |
| PSI-N | 9 | 3 | 8 | 26 | 17 | |
| FREE | 1 | 3 | 2 | 3 | 9 | |
1
See main text for definition.
2
RI = presumably recently infected; RI-Y = presumably recently infected with an outbreak; RI-N = presumably recently infected without any outbreak; PSI = presumably past steadily infected; PSI-Y = presumably past steadily infected with an outbreak; PSI-N = presumably past steadily infected without any outbreak; FREE = presumably free of infection.