Fourth case of bird flu confirmed in US - Fox News
- Fourth case of bird flu confirmed in US Fox News
- 4th human case of bird flu linked to dairy cow outbreak: CDC ABC News
- Bird flu human case is reported in Colorado Reuters.com
- Avian flu confirmed in a Colorado farmworker, marking fourth human case in U.S. since March CBS News
- InnovationRx: A Fourth Dairy Worker Has Contracted Avian Flu Forbes