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CDC Confirms First Severe Case of H5N1 Bird Flu in the United …
CDC Reports Potentially Troublesome Mutations in Bird Flu …
Genetic Sequences of Highly Pathogenic Avian Influenza …
Bird flu virus likely mutated within a Louisiana patient, CDC says
CDC Reports Concerning Mutation in Bird Flu Found in Louisiana …
Bird flu virus likely mutated within a Louisiana patient, CDC says
First severe human case of bird flu in US: 'Concerning' mutation'
CDC confirms 1st case of severe bird flu in US - ABC News
America’s first severe case of bird flu confirmed in Louisiana
CDC confirms first severe bird flu case in the U.S. - CBS News
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