Bird flu still a threat 10 years after leap to humans (USA Today) In Hong Kong, when a mysterious avian flu virus jumped from poultry to people for the first time, killing six of the 18 people infected, world health experts sounded the alarm. They warned that the stage was set for a global flu pandemic. That was 10 years ago, and the virus, known as H5N1, has not yet changed in a way that would allow it to spread easily from person to person. But health ... [News Source]