Table 5.
Cross-reactivity (HI-determined titers) of the H9N2 AIVs with sera against represented strains
| Virus |
Ferret antisera against H9N2 AIV |
|||||||
|---|---|---|---|---|---|---|---|---|
| Ck/BJ | G9 | G1 | HK/1073 | NT101 | DE/249 | C2148 | PC2539 | |
| Ck/BJ |
640 |
160 |
<10 |
80 |
160 |
<10 |
320 |
160 |
| G9 |
640 |
1280 |
40 |
80 |
1280 |
160 |
320 |
160 |
| G1 |
<10 |
<10 |
2560 |
640 |
<10 |
<10 |
<10 |
<10 |
| HK/1073 |
40 |
<10 |
1280 |
1280 |
<10 |
20 |
160 |
40 |
| NT101 |
640 |
2560 |
160 |
160 |
1280 |
320 |
640 |
160 |
| DE/249 |
<10 |
<10 |
<10 |
<10 |
<10 |
80 |
<10 |
<10 |
| C2148 |
<10 |
<10 |
<10 |
<10 |
<10 |
<10 |
1280 |
160 |
| PC2539 | <10 | <10 | <10 | <10 | <10 | <10 | 1280 | 320 |
Homologous titers are bold.