Table 5 Frequency of isolation of challenge virus from SPF chickens
Group | Samples (positive/total) | |||||
|---|---|---|---|---|---|---|
Day 3 pc | Day 5 pc | Day 7 pc | ||||
OS | CS | OS | CS | OS | CS | |
La-JS22 | 7/10 | 2/10 | 5/10 | 6/10 | 1/10 | 2/10 |
La-JS14 | 10/10 | 5/10 | 7/10 | 7/10 | 3/10 | 4/10 |
Control-SD | 5/5 | 5/5 | – | – | – | – |
Control-JS | 5/5 | 5/5 | – | – | – | – |