TABLE 1.
H6 influenza viruses characterized in this study
| Group | Isolate | Subtype | Abbreviation | Source |
|---|---|---|---|---|
| Contemporary terrestrial isolatesa | A/pheasant/HK/SH39/99 | H6N1 | Ph/HK/SH39/99 | Feces |
| A/quail/HK/1721-20/99 | H6N1 | Qa/HK/1721-20/99 | Feces | |
| A/quail/HK/1721-30/99 | H6N1 | Qa/HK/1721-30/99 | Feces | |
| A/quail/HK/SF550/00 | H6N1 | Qa/HK/SF550/00 | Feces | |
| A/quail/HK/SF595/00 | H6N1 | Qa/HK/SF595/00 | Feces | |
| A/pheasant/HK/NT261/00 | H6N1 | Ph/HK/NT261/00 | Feces | |
| A/chukarHK/FY295/00 | H6N1 | Cu/HK/FY295/00 | Feces | |
| Contemporary aquatic isolatesb | A/goose/HK/W217/97 | H6N9 | Gs/HK/W217/97 | Cloaca |
| A/goose/HK/W222/97 | H6N7 | Gs/HK/W222/97 | Cloaca | |
| A/goose/HK/W375/97 | H6N2 | Gs/HK/W375/97 | Cloaca | |
| A/duck/HK/323/98 | H6N2 | Dk/HK/323/98 | Chilled duck carcass | |
| A/duck/HK/324/98 | H6N2 | Dk/HK/324/98 | Chilled duck carcass | |
| A/duck/HK/1037-1/98 | H6N2 | Dk/HK/1037-1/98 | Cloaca | |
| A/duck/HK/1037-2/98 | H6N2 | Dk/HK/1037-2/98 | Cloaca | |
| A/duck/HK/1037-3/98 | H6N2 | Dk/HK/1037-3/98 | Cloaca | |
| A/duck/HK/1037-4/98 | H6N2 | Dk/HK/1037-4/98 | Cloaca | |
| A/duck/HK/3096/99 | H6N2 | Dk/HK/3096/99 | Cloaca | |
| A/duck/HK/3174/99 | H6N2 | Dk/HK/3174/99 | Cloaca | |
| A/duck/HK/3461/99 | H6N1 | Dk/HK/3461/99 | Cloaca | |
| A/duck/HK/3600/99 | H6N2 | Dk/HK/3600/99 | Cloaca | |
| 1970’s isolatesc | A/duck/HK/73/76 | H6N1 | Dk/HK/73/76 | Trachea |
| A/duck/HK/108/76 | H6N5 | Dk/HK/108/76 | Cloaca | |
| A/duck/HK/134/77 | H6N2 | Dk/HK/134/77 | Cloaca | |
| A/duck/HK/175/77 | H6N1 | Dk/HK/175/77 | Cloaca | |
| A/duck/HK/182/77 | H6N9 | Dk/HK/182/77 | Trachea | |
| A/duck/HK/202/77 | H6N1 | Dk/HK/202/77 | Cloaca | |
| A/duck/HK/221/77 | H6N8 | Dk/HK/221/77 | Cloaca | |
| A/goose/HK/17/77 | H6N4 | Gs/HK/17/77 | Cloaca | |
| A/chicken/HK/17/77 | H6N4 | Ck/HK/17/77 | Cloaca |
a
These samples were collected from live-poultry retail markets from April 1999 to April 2000.
b
Viruses isolated in 1997 were collected during the H5N1 outbreak, and those isolated after 1997 were collected from a central slaughtering facility for aquatic poultry.
b
These samples were collected from November 1975 to October 1979.