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CDC Confirms First Severe Case of H5N1 Bird Flu in the United …
Bird flu virus likely mutated within a Louisiana patient, CDC says
CDC Reports Potentially Troublesome Mutations in Bird Flu …
Genetic Sequences of Highly Pathogenic Avian Influenza …
CDC Reports Potentially Troublesome Mutations in Bird Flu …
CDC Reports Concerning Mutation in Bird Flu Found in Louisiana …
First severe human case of bird flu in US: 'Concerning' mutation'
America’s first bird flu death reported in Louisiana | CNN
U.S. records its first human bird flu death - NBC News
America’s first severe case of bird flu confirmed in Louisiana
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