A new strain of bird flu identified in China "is one of the most lethal influenza viruses we have seen so far," Dr. Keiji Fukuda, the World Health Organization (WHO)'s Assistant Director-General for Health Security, told journalists at a press conference in Beijing on Wednesday.

Bakersfield has once again been named the worst city in the nation for particle pollution. It's part of a new report just released Wednesday morning from the American Lung Association. Video