Table 5.
Experimental infections with ORT/chicken/Shandong/2011 and H9N2/chicken/Shandong/2011
| Groups | No. | No. survival | Survival rate (%) | ORT recovery | H9N2 recovery |
|---|---|---|---|---|---|
| 1 |
10 |
3 |
30.0 |
3 |
3 |
| 2 |
10 |
2 |
20.0 |
2 |
2 |
| 3 |
10 |
7 |
70.0 |
7 |
7 |
| 4 |
10 |
5 |
50.0 |
5 |
5 |
| 5 |
10 |
9 |
90.0 |
9 |
9 |
| 6 | 10 | 10 | 100.0 | 0 | 0 |
Indications:
Group 1 chickens were inoculated intraperitoneally with 10 LD50 of ORT/chicken/Shandong/2011 in 0.5 ml, and 100 ELD50 of H9N2/chicken/Shandong/2011 was administrated intranasallyin 0.2 ml at the same time.
Group 2 chickens were given 10 LD50 of ORT/chicken/Shandong/2011intraperitoneally in 0.5 ml and received 100 ELD50 of H9N2/chicken/Shandong/2011intranasallyin 0.2 ml three days later.
Group 3 birds were inoculated intranasally with 100 ELD50 of H9N2/chicken/Shandong/2011in 0.2 ml and three days later received intraperitoneally with 10 LD50 of ORT/chicken/Shandong/2011in 0.5 ml.
Group 4 birds were inoculated intraperitoneally with 10 LD50 of ORT/chicken/Shandong/2011in 0.5 ml.
Group 5 chickens were given 100 ELD50 of H9N2/chicken/Shandong/2011intranasally in 0.2 ml.
Group 6 birds received the sterile physiological saline intraperitoneally as a negative controlin 0.5 ml.