- Bird flu virus shows mutations in first severe human case in US, CDC says Reuters
- Bird flu virus shows mutations in first severe human infection in US, CDC says The Guardian
- Genetic Sequences of Highly Pathogenic Avian Influenza A(H5N1) Viruses Identified in a Person in Louisiana CDC
- Bird Flu is Tearing Through California’s Dairy Herd. Can it Be Stopped? Barron’s
- How America lost control of the bird flu, setting the stage for another pandemic CNN
