Research Article
Phylogenetic Analysis of Hemagglutinin Genes of H9N2 Avian Influenza Viruses Isolated from Chickens in Shandong, China, between 1998 and 2013
Table 4
HI titers of the emerging H9N2 AIVs isolated in 2012 and 2013.
| | Antigen | Antisera | | SD/YS/12 | SD/WF4/12 | SD/P6/12 | SD/HK1/13 | SD/LC1/13 | SD/LC2/13 | SS/94 |
| | SD/YS/12 | | 2560 | 1280 | 1280 | 1280 | 1280 | 320 | | SD/WF4/12 | 2560 | 10240 | 1280 | 2560 | 1280 | 2560 | 160 | | SD/P6/12 | 2560 | 5120 | 2560 | 1280 | 5120 | 2560 | 320 | | SD/HK1/13 | 5120 | 10240 | 1280 | 10240 | 1280 | 2560 | 320 | | SD/LC1/13 | 2560 | 5120 | 5120 | 1280 | 5120 | 2560 | 160 | | SD/LC2/13 | 1280 | 2560 | 1280 | 2560 | 1280 | 10240 | 160 | | SS/94 | 320 | 320 | 40 | 160 | 320 | 40 | 1280 |
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Notes. Antisera were tenfold diluted; homologous tiers were marked in bold.
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