Volume 21, Number 12—December 2015
Letter
Serologic Evidence of Influenza A (H14) Virus Introduction into North America
Neus Latorre-Margalef
, Andrew M. Ramey, Alinde Fojtik, and David E. Stallknecht
, Andrew M. Ramey, Alinde Fojtik, and David E. Stallknecht
Table
H3 and H14 microneutralization assay data from ducks sampled during 2006–2014, North America
| Year | Month of sampling | State | Species | No. | H3N8, no. (%) | H14N5, no. (%) |
|---|---|---|---|---|---|---|
| 2006 | Aug | Michigan | Mallard | 29 | 6 (21) | 0 |
| Aug/Sep |
Minnesota |
Mallard |
39 |
3 (8) |
0 |
|
| 2007 |
Aug/Sep |
Minnesota |
Mallard |
46 |
8 (17) |
1 (2) |
| 2008 |
Aug/Sep |
Minnesota |
Mallard |
44 |
8 (18) |
0 |
| 2009 | Aug/Sep | Minnesota | Mallard | 29 | 10 (34) | 0 |
| Aug |
New Jersey |
Domestic and wild mallard |
36 |
1 (3) |
0 |
|
| 2010 | Aug/Sep | Minnesota | Mallard | 29 | 6 (21) | 0 |
| Aug |
New Jersey |
Domestic and wild mallard |
20 |
5 (25) |
0 |
|
| 2011 |
Aug/Sep |
Minnesota |
Mallard |
124 |
37(30) |
0 |
| 2012 | Feb/Mar | Texas | Blue-winged teal | 19 | 3 (16) | 0 |
| Aug/Sep |
Minnesota |
Mallard |
188 |
11 (6) |
2 (1) |
|
| 2013 | Feb/Mar | Texas/Louisiana | Blue-winged teal | 120 | 13 (11) | 12 (10) |
| Feb/Mar | Texas/Louisiana | American green-winged teal | 91 | 5 (5) | 2 (2) | |
| Aug/Sep |
Minnesota |
Mallard |
65 |
8 (12) |
7 (11) |
|
| 2014 | Feb/Mar | Texas | Blue-winged teal | 22 | 1 (5) | 1 (5) |
| Sep |
Minnesota |
Mallard |
41 |
4 (10) |
0 |
|
| Totals | ||||||
| 2006–2010 | NA | NA | All ducks | 272 | 47 (17) | 1 (0.3) |
| NA | NA | Mallards only | 272 | 47 (17) | 1 (0.3) | |
| 2011–2014 | NA | NA | All ducks | 670 | 82 (12) | 24 (3.5) |
| NA | NA | Mallards only | 418 | 60 (14) | 9 (2.1) | |
| NA | NA | Blue-winged teal and American green-winged teal | 252 | 22 (9) | 15 (6) |
*NA, not applicable.
Page created: November 17, 2015
Page updated: November 17, 2015
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