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A Second Type of Bird Flu is Circulating in U.S. Ducks—What to Know
Nearly 119,000 birds have been culled at a farm in California after a bird flu called H5N9 was detected among the poultry ...
How are H5N9 and H5N1 different? What to know after California bird flu outbreak
The California duck farm's strain of H5N9 is different from those earlier cases because this time it is closely related to a ...