- In light of avian flu, seasonal flu, CDC urges clinicians to speed influenza A subtyping University of Minnesota Twin Cities
- Bird Flu Is Raising Red Flags Among Health Officials Johns Hopkins Bloomberg School of Public Health
- Health Alert Network (HAN) – 00520 | Accelerated Subtyping of Influenza A in Hospitalized Patients CDC
- Age of the panzootic: scientists warn of more devastating diseases jumping between species The Guardian
- Study reveals dangerous mutations in H5N1 bird flu News-Medical.Net