Here’s why the U.S. is not working to vaccinate birds against avian flu - MarketWatch
1. Over 160 million birds culled due to avian flu outbreak. 2. Zoetis Inc. received conditional license for bird-flu vaccine. 3. USDA plans $1 billion investment to combat bird flu and lower egg prices. 4. Broiler industry opposes vaccination; egg producers support biosecurity measures. 5. Vaccination may impact exports, complicating industry dynamics.