By Elizabeth K. Gardner
Purdue University
WEST LAFAYETTE, Ind. —The U.S. Department of Agriculture is creating a stockpile of avian influenza vaccines, but an expert suggests careful consideration of the strategy and cautions that the strain of the next outbreak is unknown.
Wild birds are typically the source of the introduction of the virus to backyard and commercial poultry flocks, which makes it very difficult to know the strain and understand the nature of the incoming virus until after the outbreak has occurred in poultry populations, said Suresh. . .
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