Table 1 Influenza viruses isolated from fecal samples of migratory water birds in autumn between 1996 and 2009
Locations | Subtypes of influenza viruses isolated in following years | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Â | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 |
Sapporo, | NPa | NP | NP | NP | NP | H1N1 (9) | H3N8 (3) | H3N8 (11) | H1N1 (1) | H3N2 (1) | H3N8 (5) | H3N8 (2) | H3N2 (1) | H1N3 (1) |
Japan | Â | Â | Â | Â | Â | H3N6 (1) | H5N3 (1) | H6N8 (2) | H3N8 (1) | H6N2 (4) | H4N6 (1) | H4N6 (2) | H3N6 (3) | H1N5 (1) |
| Â | Â | Â | Â | Â | Â | H4N5 (1) | H11N9 (3) | H7N1 (18) | H4N2 (7) | H8N4 (2) | H6N2 (1) | H5N3 (2) | H4N6 (9) | H4N6 (5) |
| Â | Â | Â | Â | Â | Â | H4N6 (1) | Â | H8N4 (1) | H5N3 (3) | Â | H9N2 (1) | H8N4 (2) | H7N7 (1) | H5N1 (1) |
| Â | Â | Â | Â | Â | Â | Â | Â | Â | H6N1 (5) | Â | H11N9 (3) | H12N5 (1) | H9N5 (1) | H6N1 (4) |
| Â | Â | Â | Â | Â | Â | Â | Â | Â | H6N8 (2) | Â | Â | Â | H10N7 (11) | H6N8 (2) |
| Â | Â | Â | Â | Â | Â | Â | Â | Â | H10N5 (7) | Â | Â | Â | Â | H11N9 (3) |
| Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | H12N5 (1) |
Wakkanai, | H1N1 (1)b | H1N1 (1) | H6N2 (1) | H2N2 (1) | H4N6 (1) | H2N2 (1) | NP | NP | H4N6 (6) | H2N5 (1) | H3N6 (2) | H1N1 (1) | H4N6 (2) | H5N2 (1) |
Japan | H3N8 (1) | H6N1 (2) | H9N2 (1) | H3N8 (2) | H5N3 (2) | H2N3 (4) | Â | Â | H6N2 (12) | H3N8 (3) | H3N8 (1) | H3N8 (1) | H5N2 (1) | Â |
| Â | H5N3 (3) | H9N2 (1) | Â | H6N2 (4) | H6N2 (2) | H3N8 (6) | Â | Â | H6N8 (2) | H6N1 (1) | H4N9 (3) | H4N6 (2) | H6N1 (4) | Â |
| Â | H6N1 (1) | H11N9 (1) | Â | H9N2 (2) | H8N4 (1) | H6N2 (4) | Â | Â | H7N7 (13) | H6N2 (3) | H6N1 (4) | H8N4 (1) | H6N2 (1) | Â |
| Â | Â | Â | Â | Â | H9N2 (1) | H12N5 (2) | Â | Â | H8N4 (1) | Â | H6N5 (1) | H10N2 (1) | H6N5 (1) | Â |
| Â | Â | Â | Â | Â | H10N4 (12) | Â | Â | Â | H10N6 (1) | Â | H9N2 (1) | H10N7 (1) | H6N8 (1) | Â |
| Â | Â | Â | Â | Â | Â | Â | Â | Â | H11N9 (1) | Â | H10N8 (1) | Â | H6N9 (1) | Â |
| Â | Â | Â | Â | Â | Â | Â | Â | Â | H12N5 (1) | Â | H11N9 (11) | Â | H9N9 (1) | Â |
| Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | H13N6 (2) | Â | H10N9 (2) | Â |
| Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | H11N9 (2) | Â |
Mongolia | NP | NP | NP | NP | NP | H1N1 (1) | H1N1 (3) | H1N1 (1) | NP | H3N2 (1) | H2N2 (1) | H3N8 (14) | H3N6 (3) | H1N8 (1) |
| Â | Â | Â | Â | Â | Â | H3N2 (1) | H3N6 (20) | H2N3 (1) | Â | H3N6 (2) | H3N8 (8) | H4N3 (1) | H3N8 (23) | H3N8 (2) |
| Â | Â | Â | Â | Â | Â | H3N6 (3) | H3N8 (55) | H3N6 (6) | Â | H3N8 (10) | H4N6 (9) | H7N6 (1) | H4N6 (8) | H4N6 (3) |
| Â | Â | Â | Â | Â | Â | H3N8 (11) | H4N6 (12) | H3N8 (28) | Â | H4N6 (6) | Â | H7N7 (4) | H4N8 (3) | H8N4 (3) |
| Â | Â | Â | Â | Â | Â | H4N2 (1) | H4N7 (1) | H4N2 (1) | Â | H8N4 (1) | Â | Â | H7N9 (3) | Â |
| Â | Â | Â | Â | Â | Â | H4N6 (12) | H4N8 (1) | H4N6 (25) | Â | H10N3 (11) | Â | Â | Â | Â |
| Â | Â | Â | Â | Â | Â | H5N2 (1) | H7N1 (1) | H9N2 (1) | Â | H10N7 (1) | Â | Â | Â | Â |
| Â | Â | Â | Â | Â | Â | H5N3 (2) | H7N7 (9) | H10N5 (5) | Â | Â | Â | Â | Â | Â |
| Â | Â | Â | Â | Â | Â | H7N1 (1) | H8N4 (5) | Â | Â | Â | Â | Â | Â | Â |
| Â | Â | Â | Â | Â | Â | H10N3 (4) | H10N7 (1) | Â | Â | Â | Â | Â | Â | Â |
| Â | Â | Â | Â | Â | Â | Â | H12N5 (1) | Â | Â | Â | Â | Â | Â | Â |