id	keyword
ca-1849	wild
ca-1849	research
ca-1849	influenza
ca-1849	birds
ca-1849	lake
ca-1849	field
ca-1849	new
ca-1849	laboratory
ca-1849	poyang
ca-1849	poultry
ca-1849	newman
ca-1849	university
ca-1849	press
ca-1849	wildness
ca-1849	knowledge
ca-1849	china
ca-1849	science
ca-1849	breeding
ca-1849	geese
ca-1849	production
ca-1849	viruses
ca-1849	nih