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  1. CDC Confirms First Severe Case of H5N1 Bird Flu in the United …

  2. CDC Reports Potentially Troublesome Mutations in Bird Flu Found …

  3. Genetic Sequences of Highly Pathogenic Avian Influenza A(H5N1) …

  4. CDC Reports Concerning Mutation in Bird Flu Found in Louisiana

  5. Bird flu virus likely mutated within a Louisiana patient, CDC says

  6. America’s first severe case of bird flu confirmed in Louisiana

  7. First severe human case of bird flu in US: 'Concerning' mutation'

  8. CDC confirms 1st case of severe bird flu in US - ABC News

  9. CDC confirms first severe bird flu case in the U.S. - CBS News

  10. U.S. reports first severe human case of bird flu - NBC News