Volume 16, Number 8—August 2010
Research
Multiyear Surveillance for Avian Influenza Virus in Waterfowl from Wintering Grounds, Texas Coast, USA
Pamela J. Ferro, Christine M. Budke, Markus J. Peterson, Dayna Cox, Emily Roltsch, Todd Merendino1, Matt Nelson, and Blanca Lupiani
Table A4
Hemagglutinin and neuramindase subtype combinations for all avian influenza viruses isolated from hunter-harvested waterfowl, Texas mid–Gulf Coast, USA, September–January 2006–07, 2007–08, and 2008–09
| Neuraminidase |
Hunting season |
Hemagglutinin* |
|||||||||
| 1 |
2 |
3 |
4 |
5 |
6 |
7 |
10 |
11 |
Total |
||
| 1 |
2006–07 | 2 | – | – | – | – | 5 | – | – | – | 7 |
| 2007–08 |
2 |
– |
– |
1 |
– |
2 |
3 |
– |
– |
8 |
|
| 2 |
2006–07 | – | – | – | 2 | – | 1 | – | – | – | 3 |
| 2007–08 | – | – | – | 1 | 5 | 2 | – | 1 | – | 9 | |
| 2008–09 |
– |
– |
– |
– |
– |
– |
1 |
– |
– |
1 |
|
| 3 |
2006–07 | – | – | – | – | – | – | 1 | – | 1 | 2 |
| 2007–08 |
– |
1 |
– |
– |
3 |
– |
2 |
7 |
– |
13 |
|
| 4 |
2006–07 | – | – | – | – | – | – | – | – | – | 0 |
| 2007–08 |
– |
– |
1 |
– |
– |
– |
1 |
– |
– |
2 |
|
| 5 |
2006–07 | – | – | – | – | – | 2 | – | – | – | 2 |
| 2007–08 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
0 |
|
| 6 |
2006–07 | – | – | 1 | 2 | – | 1 | – | – | – | 4 |
| 2007–08 | – | – | 2 | 17 | – | – | – | – | – | 19 | |
| 2008–09 |
– |
– |
– |
2 |
– |
– |
– |
– |
– |
2 |
|
| 7 |
2006–07 | – | – | – | – | – | – | – | 2 | – | 2 |
| 2007–08 |
– |
– |
– |
– |
– |
– |
5 |
9 |
– |
14 |
|
| 8 |
2006–07 | – | – | 7 | 2 | – | 1 | – | – | – | 10 |
| 2007–08 | – | 1 | 9 | 7 | – | 1 | – | – | – | 18 | |
| 2008–09 |
– |
– |
– |
2 |
– |
– |
– |
– |
– |
2 |
|
| 9 |
2006–07 | – | 2 | – | – | – | – | – | – | – | 2 |
| 2007–08 |
– |
– |
– |
– |
– |
– |
– |
– |
6 |
6 |
|
| Total | 2006–07 | 2 | 2 | 8 | 6 | 0 | 10 | 1 | 2 | 1 | 32 |
| 2007–08 | 2 | 2 | 12 | 26 | 8 | 5 | 11 | 17 | 6 | 89† | |
| 2008–09 | 0 | 0 | 0 | 4 | 0 | 0 | 1 | 0 | 0 | 5 | |
| Total | 4 | 4 | 20 | 36 | 8 | 15 | 13 | 19 | 7 | 126 | |
*No H8, H9, or H12–16 were identified in this study.
†Eight isolates not recorded because of inability to subtype the hemagglutinin and/or neuraminidase. All isolates included regardless of real-time reverse transcription–PCR result.
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