Animal health experts and poultry growers are scrambling to determine how a dangerous new strain of bird flu infected poultry flocks in four states — including Minnesota, the top nation’s turkey-producing state — and how to stop it from spreading.
Bird flu is common in wild migratory waterfowl but doesn’t usually harm them. But the H5N2 strain is deadly when it spreads to commercial poultry. It can wipe out a flock of tens of thousands of birds in a few days, as it did at a farm last month in Pope County in western Minnesota. The same strain ...
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