Dr. Marc Siegel on bird flu: 鈥楥alifornia worries me鈥� due to spread of disease in cattle
樱桃视频 correspondent Christina Coleman and 樱桃视频 senior medical analyst Dr. Marc Siegel have the latest on the spread of bird flu in the United States on 鈥樣Ｌ沂悠� Live.鈥�
