U.S. Department of Homeland Security (DHS) Secretary Janet Napolitano said on Sunday that federal agencies have declared a public health emergency over swine flu.

Asian nations, already concerned over avian flu, went on high alert on Sunday, as the World Health Organization (WHO) declared the swine flu outbreak occurring mostly in Mexico a public health emergency with the potential of becoming a global pandemic.

For the second time in two days, and the third time this month, China is reporting a Human H5N1 infection. This time of a 27-year-old woman who died yesterday in Shandong Province.

A new University of Colorado at Boulder study shows the resistance of the avian flu virus to a major class of antiviral drugs is increasing through positive evolutionary selection, with researchers documenting the trend in more than 30 percent of the samples tested.

Influenza’s ability to resist the effects of cheap and popular antiviral agents in Asia and Russia should serve as a cautionary tale about U.S. plans to use the antiviral Tamiflu in the event of widespread avian flu infection in humans, scientists say.

As the first globally co-ordinated plan for the planet's gravest health threats is hatched by government ministers from around the world this weekend, a new report sets out a 10-point plan for this new, globalised approach to infectious diseases such as avian flu.

Spread of malaria, Rift Valley fever, and avian flu far more likely if researchers continue to 'operate in silos' and if solutions ignore local conditions

As the specter of a worldwide outbreak of avian or “bird flu” lingers, health officials recognize that new drugs are desperately needed since some strains of the virus already have developed resistance to the current roster of anti-flu remedies.

Researchers at the University of Pennsylvania School of Medicine have identified a potential new way to vaccinate against avian flu.

A new vaccine under development may provide protection against highly pathogenic bird flu and its evolving forms, according to researchers at Purdue University and the Centers for Disease Control and Prevention who discovered the new preventative drug and have tested it in mice.

The H5N1 Avian Flu Virus has been found in a dead wild Canadian Goose in Abbotsbury Swannery in Dorset, England. This is the 11th case of the virus turning up in wild birds. The goose was found on February 25, 2008.

MIT researchers have uncovered a critical difference between flu viruses that infect birds and humans, a discovery that could help scientists monitor the evolution of avian flu strains and aid in the development of vaccines against a deadly flu pandemic.