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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 LupianiComments to Author 
Author affiliations: Texas A&M University, College Station, Texas, USA (P.J. Ferro, C.M. Budke, M.J. Peterson, D. Cox, E. Roltsch, B. Lupiani); Texas Parks and Wildlife Department, Bay City, Texas, USA (T. Merendino, M. Nelson); 1Current affiliation: Ducks Unlimited, Texas Gulf Coast, Richmond, Texas, USA.

Main Article

Table A7

Comparison of apparent prevalence of avian influenza virus in blue-winged and green-winged teal from hunter-harvested waterfowl, Texas mid–Gulf Coast, USA, September–January 2006–07, 2007–08, and 2008–09

Age/sex
 Blue-winged teal
Green-winged teal
No. tested
 Real-time RT-PCR*
 VI†
 No. tested
 Real-time RT-PCR*
 VI†
Adult 910 11.00 (8.97–13.04) 3.85 (2.60–5.10) 790 6.33 (4.63–8.03) 0.38 (0.08–1.11)
Juvenile 620 15.48 (12.64–18.33) 6.94 (4.94–8.94) 251 7.57 (4.30–10.84) 1.99 (0.26–3.72)
p value
0.010
 0.007
0.491
 0.011
Hen 772 13.73 (11.30–16.16) 4.40 (2.96–5.85) 548 6.57 (4.50–8.64) 0.91 (0.12–1.71)
Drake 894 11.30 (9.22–13.37) 4.92 (3.50–6.34) 581 7.75 (5.57–9.92) 0.86 (0.11–1.61)
p value 0.133 0.618 0.444 0.926

*RT-PCR, reverse transcription–PCR. Apparent prevalence, % (95% confidence interval).
†VI, virus isolation. Apparent prevalence, % (95% confidence interval). Boldface indicates significance.

Main Article

1Current affiliation: Ducks Unlimited, Texas Gulf Coast, Richmond, Texas, USA.

Page created: September 23, 2011
Page updated: September 23, 2011
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