Table 2.
Picornavirus RT-PCR
| Species | Sample | RT-PCR+ (%) | Strain | Age |
|---|---|---|---|---|
| Domestic duck | Swab | 0/25 | Not available | |
| Domestic turkey | Swab | 0/11 | Not available | |
| Chicken | Swab | 0/14 | Not available | |
| Canadian geese | Swab | 0/149 | Not available | |
| Chicken (broiler)a | Swab | 2/28 (7) | CHK1, 2 | Not available |
| Chicken (broiler) | Litter | 0/9 | 21–42 days | |
| Chicken (layer)b | ||||
| House 1 | Litter | 0/6 | 66 weeks | |
| House 2 | Litter | 2/6 (33) | CHK184, 185 | 26 weeks |
| House 3 | Litter | 5/12 (42) | CHK175, 177, 178, 179, 180 | 26 weeks |
| House 4 | Litter | 4/6 (66) | CHK165, 166, 167, 168 | 22–24 weeks |
| House 5 | Litter | 0/12 | 70–78 weeks | |
| House 6 | Litter | 2/6 (33) | CHK148, 149 | 27 weeks |
| Turkeyc | ||||
| Farm 1 | Litter | 3/4 (75) | TRK90, 91, 92 | 21 days |
| Farm 2 | Litter | 0/4 | 21 days | |
| Farm 3 | Litter | 2/4 (50) | TRK22, 24d | 20 days |
| Farm 4 | Litter | 0/4 | 21 days | |
aDiagnostic cases represent birds with runting–stunting enteritis
bLitter samples were collected from 22 to 78 weeks old egg layers from six different houses of the same farm (6–12 samples/house)
cLitter samples were collected from 20 to 21 days old turkey poults from two different houses from each of four different farms (2 samples/house; 4 samples/farm)
dTRK22 (THV) and TRK24 (new genus described in this study) were detected in two different houses of farm 3