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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 A8

Apparent prevalence of avian influenza virus in gadwall and northern shoveler from hunter-harvested waterfowl, Texas mid–Gulf Coast, USA, September–January 2006–07, 2007–08, and 2008–09

Age/sex
 Gadwall
Northern shoveler
No. tested
 Real-time RT-PCR*
 VI†
 No. tested
 Real-time RT-PCR*
 VI†
Adult 233 2.15 (0.29–4.01) 0.43 (0.01–2.37) 363 7.16 (4.51–9.82) 1.38 (0.18–2.58)
Juvenile 144 3.47 (0.48–6.46) 0 258 12.40 (8.38–16.43) 3.88 (1.52–6.23)
p value
0.436
 0.431
0.027
 0.046
Hen 221 1.36 (0.28–3.92) 0.45 (0.01–2.50) 373 10.99 (7.82–14.17) 2.68 (1.04–4.32)
Drake 216 3.24 (0.88–5.60) 0 330 7.58 (4.72–10.43) 1.52 (0.20–2.83)

*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
Page reviewed: September 23, 2011
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