Highly pathogenic bird flu has quietly spread into another cluster of live-bird markets, with federal data and state alerts flagging nine new detections nationwide. Eight are in New York City and one ...

Influenza D virus, a pathogen best known for causing respiratory illness in cattle, appears to be silently infecting farmworkers across multiple continents, according to a growing body of serological ...

There are huge and growing opportunities for fruitful interactions between physicists and biologists. Understanding how key components of a biological system interact across organizational levels is a ...

These results indicate that no major change in receptor-binding specificity of the HA was required for the emergent pandemic virus to acquire human-like characteristics and become established in the ...

A swine flu case in Spain with no pig exposure has raised questions about how the virus spread and triggered international health monitoring.

iWHO Collaborating Centre for Reference and Research on Influenza, Victorian Infectious Diseases Reference Laboratory, Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia ...

Spain notified the WHO of suspected person-to-person spread of swine flu A(H1N1)v in Catalonia, while officials said the public risk is very low.