- Bird flu may be mutating to become more transmissible to humans say scientists after woman caught first severe Daily Mail
- Genetic Sequences of Highly Pathogenic Avian Influenza A(H5N1) Viruses Identified in a Person in Louisiana CDC
- Bird Flu Samples From Very Ill Patient Had ‘Concerning’ Mutations The New York Times
- Bird flu virus shows mutations in first severe human case in US, CDC says Reuters
- How America lost control of the bird flu and raised the risk of another pandemic PBS NewsHour