The Centers for Disease Control and Prevention (CDC) has so far confirmed 52 human cases of bird flu—otherwise known as avian influenza H5N1—during this year's outbreak: 26 in California ...

A dangerous bird flu, in other words, was suddenly circulating in mammals—mammals with which people have ongoing, extensive contact. “Holy cow,” says Thomas Friedrich, a virologist at the University ...

Restrictions for the control of the avian influenza outbreak near Euroa have been reduced.