Research Article
Changing Patterns of H6 Influenza Viruses in Hong Kong Poultry Markets
Table 2
Antigenic analysis of H6 influenza viruses by hemagglutinin inhibition.
| | Titer for | Virus | Hyperimmune rabbit antisera against | Postinfection chicken antisera against | | Ty/MA/1/65 | Sh/Aus/1/72 | Tl/HK/W312/97 | Qa/HK/YU1564/00 | Qa/HK/YU39/01 | Dk/Shantou/5540/01 |
| Reference strains | | | | | | | Ty/MA/1/65 | 2560 | 5120 | | 640 | 80 | 2560 | Sh/Aus/1/72 | 80 | 2560 | | | | | Tl/HK/W312/97 | 80 | 160 | 2560 | 2560 | 640 | | Qa/HK/YU1654/00 | 1280 | | 320 | 2560 | 80 | 320 | Qa/HK/YU39/01 | 160 | 640 | 40 | 320 | 2560 | 80 | Dk/Shantou/5540/01 | 320 | 320 | | | | 1280 | 2001 isolates | | | | | | | Qa/HK/FB611/01 | 1280 | 2560 | 2560 | 2560 | 640 | 160 | Qa/HK/FB/801/01 | 2560 | 5120 | 2560 | 5120 | 640 | 160 | Qa/HK/SF104/01 | 5120 | 5120 | 2560 | 5120 | 5120 | 80 | Qa/HK/FY119/01 | 1280 | 2560 | 640 | 2560 | 320 | 160 | Qa/HK/NT342/01 | 1280 | 2560 | 640 | 2560 | 320 | 160 | Qa/HK/CSW106/01 | 5120 | 5120 | 2560 | 5120 | 5120 | 80 | Gf/HK/NT897/01 | 2560 | 5120 | 2560 | 5120 | 640 | 160 | Ck/HK/SF3/01 | 5120 | 5120 | 640 | 5120 | 320 | 160 | Ck/HK/SF4/01 | 5120 | 5120 | 640 | 5120 | 320 | 160 | Sc/HK/AP46/01 | 2560 | 5120 | 1280 | 5120 | 320 | 160 | 2002 isolates | | | | | | | Qa/HK/YU404/02 | 2560 | 2560 | 640 | 5120 | 640 | 160 | Qa/HK/YU421/02 | 5120 | 5120 | 1280 | 5120 | 640 | 160 | Ph/HK/SSP44/02 | 1280 | 5120 | 2560 | 2560 | 640 | 160 | Gf/HK/SSP99/02 | 5120 | 5120 | 2560 | 5120 | 320 | 160 | 2003 isolates | | | | | | | Pg/HK/WF47/03 | 2560 | 5120 | 640 | 5120 | 160 | 80 | Ch/HK/SF126/03 | 2560 | 2560 | 640 | 2560 | 80 | 160 | Ch/HK/SF164/03 | 2560 | 2560 | 640 | 2560 | 80 | 80 | Ch/HK/CSW595/03 | 2560 | 2560 | 640 | 2560 | 80 | 80 |
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Ty: turkey; MA: Massachusetts; Sh: shearwater; Aus: Australia; Tl: teal; HK: Hong Kong; Qa: quail; Ph: pheasant; Dk: duck; Gf: guinea fowl; Sc: silky chicken; Pg: pigeon. Titers in boldface are for homologous seta; no inhibition was detected at a serum dilution of 1 : 40.
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