The largest outbreak of avian influenza in U.S. history has driven up egg prices and raised concerns about a human pandemic, though C.D.C. experts say the risk of that is low.
U.S. Considers Vaccinating Chickens Amid Bird Flu Outbreak
The largest outbreak of avian influenza in U.S. history has driven up egg prices and raised concerns about a human pandemic, though C.D.C. experts say the risk of that is low.
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