Bird flu is creeping toward human transmission − how ... it becomes evident that H5N1 is displaying a common pattern of stepwise invasion from animal to human populations. Like many emerging ...

The H5N1 bird flu has been spreading widely among wild birds, poultry and other animals around the world for several years, and starting early last year became a problem in people and cows in the U.S.

At the viral chatter stage of an outbreak, pathogens are just starting to infect people in sporadic bursts. It's a sign that a pandemic may be on the horizon.

A mom and child narrowly escaped two cassowaries in Australia on May 9, leading Australian officials to warn people not to ...

More than 500 bird species could go extinct in the next 100 years because of climate change and habitat loss, researchers ...