Pandemic Flu
Clip | 6m 2s | Video has closed captioning.
Will the virus that causes bird flu develop the ability to move from person to person?
Aired: 01/01/06
Problems Playing Video? | Closed Captioning
Clip | 6m 2s | Video has closed captioning.
Will the virus that causes bird flu develop the ability to move from person to person?
Aired: 01/01/06
Problems Playing Video? | Closed Captioning