TABLE 4.
Antigenic analysis of H6 avian influenza viruses isolated in China
| Virus (HA group) | HI antibody titer of antiserum against virus (HA group)a: |
||||
|---|---|---|---|---|---|
| CK/GD/S1312/10 (H6N2) (1) | DK/HuB/S1114/09 (H6N2) (2) | DK/ZJ/S4204/10 (H6N6) (3) | DK/GD/S4192/08 (H6N2) (4) | DK/GD/S1419/11 (H6N6) (5) | |
| CK/GD/S1312/10 (H6N2) (1) | 640 | 80 | 40 | <10 | <10 |
| DK/GD/S1328/10 (H6N2) (1) | 640 | 80 | 80 | <10 | <10 |
| GS/GD/S1384/10 (H6N2) (1) | 640 | 80 | 80 | <10 | <10 |
| DK/GD/S1289/10 (H6N2) (1) | 320 | 40 | 80 | <10 | <10 |
| DK/HuN/S3047/09 (H6N2) (1) | 320 | 40 | 80 | <10 | <10 |
| CK/GD/S1453/10 (H6N2) (1) | 640 | 80 | 80 | <10 | <10 |
| DK/HuB/S4135/10 (H6N2) (1) | 320 | 40 | 80 | <10 | <10 |
| CK/GD/S1414/10 (H6N6) (1) | 640 | 80 | 80 | <10 | <10 |
| DK/ZJ/S1023/10 (H6N6) (1) | 320 | 80 | 160 | <10 | <10 |
| DK/GD/S3180/10 (H6N6) (1) | 640 | 80 | 80 | <10 | <10 |
| DK/HuN/S4273/10 (H6N6) (1) | 320 | 80 | 80 | <10 | <10 |
| CK/GD/S1311/10 (H6N6) (1) | 640 | 80 | 40 | <10 | <10 |
| CK/HuN/S4495/10 (H6N6) (1) | 320 | 40 | 80 | <10 | <10 |
| CK/HuN/S3003/09 (H6N6) (1) | 320 | 40 | 80 | <10 | <10 |
| DK/HuB/S1114/09 (H6N2) (2) | 320 | 160 | 40 | <10 | <10 |
| DK/HuB/S4170/08 (H6N2) (2) | 160 | 160 | 40 | <10 | <10 |
| DK/HuN/S1284/09 (H6N2) (2) | 320 | 160 | 160 | <10 | <10 |
| DK/GD/S4018/10 (H6N6) (2) | 160 | 80 | 160 | <10 | <10 |
| DK/GD/S1663/09 (H6N6) (2) | 80 | 80 | 160 | <10 | <10 |
| CK/GX/S4029/10 (H6N6) (2) | 160 | 80 | 80 | <10 | <10 |
| DK/ZJ/S4204/10 (H6N6) (3) | 80 | <10 | 320 | <10 | <10 |
| CK/HuN/S4191/09 (H6N2) (3) | 80 | <10 | 320 | <10 | <10 |
| DK/HuN/S4386/09 (H6N2) (3) | 80 | <10 | 320 | <10 | <10 |
| DK/HuB/S1366/09 (H6N2) (3) | 80 | <10 | 320 | <10 | <10 |
| CK/GX/S4381/10 (H6N6) (3) | 40 | <10 | 320 | <10 | <10 |
| DK/GX/S4111/10 (H6N6) (3) | 80 | <10 | 320 | <10 | <10 |
| DK/GD/S4192/08 (H6N2) (4) | 80 | <10 | 160 | 160 | <10 |
| DK/GD/S1566/09 (H6N2) (4) | 40 | <10 | 160 | 80 | <10 |
| DK/GD/S1419/11 (H6N6) (5) | 40 | 20 | 20 | <10 | 1280 |
| CK/GD/S2346/09 (H6N2) (5) | 40 | 40 | 80 | <10 | 160 |
| DK/FJ/S4081/08 (H6N2) (5) | 40 | 40 | 40 | <10 | 160 |
| DK/GD/S4251/10 (H6N6) (5) | 20 | 20 | 20 | <10 | 640 |
| GS/GD/1/96 (H5N1)b | <10 | <10 | <10 | <10 | <10 |
| Newcastle disease virus (LaSota strain)b | <10 | <10 | <10 | <10 | <10 |
a
Antiserum was generated by intranasally inoculating guinea pigs with 106 EID50 of the indicated virus. Homologous titers are underlined.
b
An H5N1 virus and a Newcastle disease virus served as negative antigen controls.