TABLE 3.
HI titers from antigenic analysis of influenza A H9N2 viruses
| Virus | Genotype | HI titera
|
||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Qa/HK/G1/97
|
Dk/HK/Y280/97
|
Ck/HK/G9/97
|
||||||||||||||
| 1073-9 | 26 | 29 | 7B10 | 8C4 | 15F1 | 18G4 | 3D11 | 4G3 | 19A10 | 18B10 | 2F4 | 18B1 | G9-6 | G9-25 | ||
| Qa/HK/G1/97 | A0 | 200 | > | > | <100 | <100 | <100 | <100 | <100 | <100 | <100 | 100 | <100 | <100 | > | > |
| HK/1073/99 | A0 | 100 | > | > | <100 | <100 | <100 | 100 | <100 | <100 | <100 | 100 | <100 | <100 | > | > |
| Dk/HK/Y280/97 | B0 | <100 | 400 | > | > | > | > | > | > | > | > | 3,200 | > | > | > | > |
| Ck/HK/G9/97 | Bn | 400 | 800 | > | > | > | > | > | > | > | > | 6,400 | > | > | > | > |
| HK/2108/03 | B7 | <100 | <100 | <100 | 200 | > | <100 | <100 | <100 | <100 | <100 | 1,600 | <100 | <100 | <100 | <100 |
| WDk/ST/4808/01 | B7 | <100 | <100 | <100 | 200 | > | <100 | <100 | <100 | <100 | <100 | 3,200 | <100 | <100 | <100 | <100 |
| Gf/ST/2076/01 | A0 | <100 | > | > | <100 | <100 | <100 | <100 | <100 | <100 | <100 | 200 | <100 | <100 | > | > |
| Cu/ST/22116/05 | A4 | 3,200 | > | > | <100 | <100 | <100 | <100 | <100 | <100 | <100 | 100 | <100 | <100 | > | > |
| Pa/ST/5692/00 | B2 | 800 | 400 | > | > | > | > | > | > | 12,800 | > | 12,800 | > | > | > | > |
| Pa/ST/4525/02 | B3 | <100 | 800 | > | > | > | > | > | > | > | > | 6,400 | > | > | > | > |
| Ph/ST/4340/03 | B23 | 800 | 1,600 | > | > | > | > | > | > | > | > | > | > | > | > | > |
| Ph/ST/5588/04 | B14 | 200 | 800 | > | > | > | > | > | > | > | > | > | > | > | > | > |
| Ph/ST/111/05 | B3 | 200 | 800 | > | > | > | > | > | > | > | > | > | > | > | > | > |
| Ck/ST/94/00 | B3 | 200 | 800 | > | > | > | > | > | > | > | > | > | > | > | > | > |
| Ck/ST/1126/01 | B0 | 100 | 800 | > | > | > | > | > | > | > | > | > | > | > | > | > |
| Ck/ST/1890/01 | B3 | 800 | 1,600 | > | > | > | > | > | > | > | > | > | > | > | > | > |
| Ck/HN/774/02 | B17 | 100 | 800 | > | > | > | > | > | > | > | > | 6,400 | > | > | > | > |
| Ck/YN/401/02 | B18 | 200 | 800 | > | > | > | > | > | > | > | > | 6,400 | > | > | > | > |
| Ck/ST/2204/02 | B3 | 800 | 1,600 | > | > | > | > | > | > | > | > | 6,400 | > | > | > | > |
| SCk/ST/1404/03 | B19 | 800 | 1,600 | > | > | > | > | > | > | > | > | 6,400 | > | > | > | > |
| SCk/ST/4104/03 | B22 | 100 | 1,600 | > | > | > | > | > | > | > | > | 6,400 | > | > | > | > |
| Ck/GX/1857/04 | B25 | 100 | 800 | > | > | > | > | > | > | > | > | > | > | > | > | > |
| Ck/ST/19465/05 | B29 | 800 | 800 | > | > | > | > | > | > | > | > | > | > | > | > | > |
| Ck/GX/521/05 | B26 | 100 | 800 | > | > | > | > | > | > | > | > | > | > | > | > | > |
| Ck/HN/4444/05 | B28 | 800 | 800 | > | > | > | > | > | > | > | > | > | > | > | > | > |
| Ck/FJ/3080/05 | B14 | 1,600 | 1,600 | > | > | > | > | > | > | > | > | 12,800 | > | > | > | > |
| Pa/ST/1800/00 | B1 | 800 | <100 | <100 | 800 | > | <100 | <100 | <100 | <100 | <100 | 12,800 | <100 | <100 | <100 | <100 |
| Pa/ST/4541/01 | B7 | <100 | <100 | <100 | 400 | > | <100 | <100 | <100 | <100 | <100 | 3,200 | <100 | <100 | <100 | <100 |
| Cu/ST/338/02 | B8 | <100 | <100 | <100 | 400 | > | <100 | <100 | <100 | <100 | <100 | 3,200 | <100 | <100 | <100 | <100 |
| Ph/ST/3530/03 | B7 | 100 | <100 | <100 | 400 | > | <100 | 100 | <100 | <100 | <100 | 3,200 | <100 | <100 | <100 | <100 |
| Cu/ST/290/04 | B7 | 3,200 | <100 | <100 | 400 | > | <100 | 100 | 100 | <100 | <100 | 6,400 | <100 | <100 | <100 | <100 |
| Ph/ST/17033/05 | B16 | 200 | <100 | <100 | 400 | > | <100 | 100 | 200 | <100 | <100 | 6,400 | 100 | <100 | <100 | <100 |
| SCk/ST/473/04 | B7 | 1,600 | <100 | <100 | 400 | > | <100 | 100 | 100 | <100 | <100 | 6,400 | 100 | 100 | <100 | <100 |
a
>, HI titer of >12,800. The HI assay was started at a 1:100 dilution.