Applying the scientific method when assessing the influence of migratory birds on the dispersal of H5N1.
BACKGROUND
The role of wild birds in the dispersal of highly pathogenic avian influenza virus H5N1 continues to be the subject of considerable debate. However, some researchers functionally examining the same question are applying opposing null hypotheses when examining this issue.


CONCLUSIONS
I describe the correct method for establishing a null hypothesis under the scientific method. I suggest that the correct null hypothesis is that migratory birds can disperse this virus during migration and encourage researchers to design studies to falsify this null. Finally, I provide several examples where statements made during this debate, while strictly true, are not generally informative or are speculative.


CONCLUSIONS
By adhering to the scientific method, definitive answers regarding the role of wild birds in the dispersal of highly pathogenic viruses will be reached more effectively.
U.S. Geological Survey, Alaska Science Center, 1011 East Tudor Road, Anchorage, Alaska, 99503, USA. paul_flint@usgs.gov
Paul L
PL
Flint
D025041:Animal Migration; D000818:Animals; D001717:Birds; D002353:Carrier State / Q000662:veterinary* / Q000821:virology; D004784:Environmental Monitoring / Q000379:methods; D053124:Influenza A Virus, H5N1 Subtype / Q000472:pathogenicity / Q000502:physiology*; D005585:Influenza in Birds / Q000635:transmission* / Q000821:virology