Bird Flu | H5N1 Virus Spreads Across All 50 US States, Experts Urge Caution
A bird flu strain once confined to poultry is ruffling more than feathers. H5N1 has taken root in U.S. dairy farms, and now, it's jumped species. With experts watching closely, some say it's time to read the writing on the wall. Our next report explores the signs we shouldn't...and musn't ignore.
