Table 2.
HA and NA subtype combinations for IAV isolates recovered by year of surveillance activity in Missouri, United States, 2005–2013. Numbers in parentheses equals total number of isolates with respective antigenic subtype.
| 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | |
|---|---|---|---|---|---|---|---|---|---|
| Samples collected | 300 | 383 | 400 | 339 | 329 | 607 | 652 | 523 | 451 |
| Recovered isolates (% positive) | 4 (1.33) | 5 (1.30) | 9 (2.25) | 9 (2.65) | 8 (2.43) | 27 (4.45) | 10 (1.53) | 10 (1.91) | 26 (5.76) |
| Identified subtypes | H2N3 (1) | H6N2 (1) | H?N? (1) | H6N1,2,4 (2) | H?N2 (1) | H?N2 (1) | H3,4N2 (1) | H3N6 (1) | H?N? (7) |
| H4N6 (1) | H8N3 (1) | H?N1,4 (1) | H6N2 (1) | H?N9 (1) | H?N3 (1) | H3N6 (2) | H4N6 (2) | H1N2 (1) | |
| H11N3 (1) | H9N3 (1) | H4N2 (1) | H10N7 (1) | H6N2 (1) | H?N6 (1) | H4N8 (3) | H4N8 (2) | H2N3 (1) | |
| H11N9 (1) | H11N9 (2) | H5N2 (1) | H11N9 (2) | H7N3 (1) | H?N7 (1) | H5N2 (1) | H5N3 (1) | H3N6,8 (1) | |
| — | — | H6N2 (1) | H?N? (2) | H9N2 (1) | H?N8 (1) | H6N2 (1) | H10N3 (1) | H3N8 (6) | |
| — | — | H7N1 (1) | H?N5 (1) | H10N3 (1) | H3N1 (1) | H11N9 (1) | H10N7 (1) | H4N6 (1) | |
| — | — | H7N7 (1) | — | H10N7 (1) | H3N6 (3) | H12N1,4 (1) | H11N9 (1) | H4N8 (6) | |
| — | — | H11N? (1) | — | H12N5 (1) | H4N6 (1) | — | H?N? (1) | H6N8 (1) | |
| — | — | H11N2 (1) | — | — | H5N2 (1) | — | — | H10N3 (1) | |
| — | — | — | — | — | H5N9 (1) | — | — | H10N7 (1) | |
| — | — | — | — | — | H6N1 (1) | — | — | — | |
| — | — | — | — | — | H6N1,2,4 (1) | — | — | — | |
| — | — | — | — | — | H7N1,4 (1) | — | — | — | |
| — | — | — | — | — | H7N3 (3) | — | — | — | |
| — | — | — | — | — | H7N7 (2) | — | — | — | |
| — | — | — | — | — | H9,12N2 (1) | — | — | — | |
| — | — | — | — | — | H10N7 (1) | — | — | — | |
| — | — | — | — | — | H11N3,9 (1) | — | — | — | |
| — | — | — | — | — | H11N9 (3) | — | — | — | |
| — | — | — | — | — | H12N4 (1) | — | — | — |