Table 3.
Overall prevalence and farm-level prevalence (including mean, standard deviation, minimum, and maximum values) of respiratory pathogens BCoV, BRSV, BPI3V, ICV, and IDV in Swiss veal calves from 33 fattening farms, as well as overall prevalence of swab samples positive for more than one respiratory virus (based on 764 nasopharygeal swab samples).
| Virus 1 | Number of Positive Samples 2 | Overall Prevalence | Mean Farm-level Prevalence | Standard Deviation | Min. | Max. |
|---|---|---|---|---|---|---|
| BCoV | 402 | 53.5 | 23.2 | 28.5 | 0 | 100 |
| BRSV | 16 | 2.1 | 1.3 | 4.2 | 0 | 23.1 |
| BPI3V | 25 | 3.3 | 0.9 | 2.24 | 0 | 9.3 |
| ICV | 0 | 0 | 0 | 0 | 0 | 0 |
| IDV | 31 | 4.1 | 2.3 | 8.9 | 0 | 50 |
| Coinfections | ||||||
| BCOV + IDV | 22 | 2.9 | ||||
| BCOV + BRSV | 10 | 1.3 | ||||
| BCOV + BPI3V | 16 | 2.1 | ||||
| BCOV + IDV + BPI3V | 4 | 0.5 | ||||
| BCOV + IDV + BRSV | 1 | 0.0 3 | ||||
| IDV + BPI3V | 5 | 0.0 3 | ||||
| IDV + BRSV | 2 | 0.0 3 |
1 Prevalence rates are shown separately for each virus. Additionally, coinfections are also shown separately. 2 Number of swabs that tested positive (ct <35) or weakly positive (ct between 35 and <45) for the respective virus or combination. 3 Mathematically rounded.