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Results of the pathogenicity study using two IBV strains.
| Groupa | Dose, median embryo infectious doses (log10)b | Morbidity (%) | Mortality (%) | Antibody (%)c |
||||
|---|---|---|---|---|---|---|---|---|
| 4d | 8 | 12 | 16 | 20 | ||||
| CK/CH/LJL/111054 | 5.5 | 40 | 0 | 0/10(0) | 3/10(30) | 7/10(70) | 8/10(80) | 10/10(100) |
| H120 | 5.3 | 0 | 0 | 0/10(0) | 2/10(20) | 6/10(60) | 7/10(70) | 10/10(100) |
| Control | – | 0 | 0 | 0/10(0) | 0/10(0) | 0/10(0) | 0/10(0) | 0/10(0) |
Ten chicks per group.
Dose per chick, 100 μL.
Number seroconverted/number inoculated.
Days after challenge.
