Prevalence of Influenza A viruses in wild migratory birds in Alaska: Patterns of variation in detection at a crossroads of intercontinental flyways

Hon S Ip¹ , Paul L Flint² , J Christian Franson¹ , Robert J Dusek¹ , Dirk V Derksen² , Robert E Gill Jr² , Craig R Ely² , John M Pearce² , Richard B Lanctot³ , Steven M Matsuoka³ , David B Irons³ , Julian B Fischer³ , Russell M Oates³ , Margaret R Petersen² , Thomas F Fondell² , Deborah A Rocque³ , Janice C Pedersen⁴ and Thomas C Rothe⁵

¹US Geological Survey, National Wildlife Health Center, Madison, Wisconsin, USA

²US Geological Survey, Alaska Science Center, Anchorage, Alaska, USA

³US Fish and Wildlife Service, Anchorage, Alaska, USA

⁴US Department of Agriculture, National Veterinary Services Laboratory, Ames, Iowa, USA

⁵Alaska Department of Fish and Game, Anchorage, Alaska, USA

author email corresponding author email

Virology Journal 2008, 5:71doi:10.1186/1743-422X-5-71


Published:	4 June 2008

Additional files

Additional file 1:

Results of avian influenza surveillance in Alaska between May 2006 and March 2007. The total number of samples collected, the number tested by matrix rRT-PCR and virus isolation in embryonating eggs, and the number of samples positive for avian influenza by both methods is presented for each of 126 species. The rRT-PCR results were used in the statistical analyses and summaries in the text.

Format: PDF Size: 25KB Download file

This file can be viewed with: Adobe Acrobat Reader

Additional file 2:

Selection results for logistic regression models used to describe variation in rRT-PCR prevalence among age and sex classifications. Structure and associated Akaike's Information Criterion (AIC) values for models used to describe variation in rRT-PCR virus prevalence among adults and juveniles, males and females.

Format: PDF Size: 18KB Download file

This file can be viewed with: Adobe Acrobat Reader

Additional file 3:

Selection results for logistic regression models used to describe temporal and species variation in rRT-PCR prevalence among age and sex classifications. Structure and associated Akaike's Information Criterion (AIC) values for models used to describe variation in rRT-PCR virus prevalence across dates of sampling among adults and juveniles, males and females.

Format: PDF Size: 19KB Download file

This file can be viewed with: Adobe Acrobat Reader