Table 4.
Haemagglutinin inhibition analysis of A/California/04/2009 and A/California/07/2009 reverse genetics and reassortant viruses
| Virus | Mutations | Ferret antisera | |||||
|---|---|---|---|---|---|---|---|
| A/Cal | A/Auck | A/Bris | A/Phil | Seroneg | |||
| IVR‐153 | A/Cal/7/09 | R | 5120 | 1280 | 5120 | 1280 | < 20 |
| X‐179A | A/Cal/7/09 | T, R | 5120 | 1280 | 10240 | 1280 | < 20 |
| CSLRG99 | A/Cal/4/09 | T, R | 5120 | 1280 | 5120 | 1280 | < 20 |
| CSLRG101 | A/Cal/4/09 | R | 5120 | 1280 | 5120 | 1280 | < 20 |
| CSLRG110B | A/Cal/7/09 | R | 2560 | 640 | 2560 | 640 | < 20 |
| CSLRG112 | A/Cal/7/09 | T, R | 2560 | 640 | 2560 | 640 | < 20 |
Mutations: T – K209T; R – Q223R. Ferret antisera: A/Cal – A/California/07/2009 (H1N1); A/Auck – A/Auckland/1/2009 (H1N1); A/Bris – A/Brisbane/2013/2009 (H1N1); A/Phil – A/Philippines/344/2004 (H1N2); Seroneg – uninfected. Assay performed using 1% chicken red blood cells.