Table 2.
Survivability of each group of chickens infected with the reassortants
| Strain name | Mean survival time (days) | Survival rate (%) | Survival analysisa | Categorized groupb |
|---|---|---|---|---|
| HP | 2.00 | 0.00 | ***/**** | S |
| rHP | 2.00 | 0.00 | ***/**** | S |
| WB (L/PB1) | 2.00 | 0.00 | *** | S |
| LP (W/MNS) | 2.25 | 0.00 | *** | S |
| WB (L/PA) | 3.00 | 0.00 | ||
| LP (W/NS) | 3.00 | 0.00 | * | M |
| WB | 3.33 | 0.00 | */** | M |
| LP (W/PB2) | 3.33 | 0.00 | * | M |
| WB (L/M) | 3.75 | 0.00 | */** | M |
| LP | 3.87 | 6.67 | */** | M |
| LP (W/M) | 4.00 | 0.00 | * | M |
| LP (W/NP) | 4.33 | 0.00 | * | M |
| WB (L/NP) | 7.00 | 50.00 | */** | M |
| LP (W/PB1) | 7.50 | 50.00 | */** | M |
| WB (L/PB2) | 8.25 | 25.00 | */**/**** | L |
| WB (L/NS) | 9.25 | 75.00 | */**/**** | L |
| WB (L/MNS) | 9.25 | 50.00 | */**/**** | L |
| LP (W/PA) | 10.00 | 100.00 | */**** | L |
a
Statistical significance (P < 0.05) was observed against the result of HP (*), rHP (**), LP (***), or WB (****) by survival analysis.
b
Categorized group: M contained groups which differentiated from HP and rHP, while they did not differentiate from LP or WB. Virus groups differentiated from LB or WB and shorter MSTs were categorized into group S, while those with longer MSTs were categorized into group L.