Colorado workers with bird flu toiled in heat, without effective protective gear - Reuters
- Colorado workers with bird flu toiled in heat, without effective protective gear Reuters
- More People Test Positive For Bird Flu In US The Weather Channel
- Six Colorado workers contracted bird flu, the most human cases in a state The Washington Post
- Bird Flu (H5N1) Explained: U.S. Human Infections Rise To 9 Forbes
- Colorado Poultry Workers Battle Bird Flu in Heat Wave as US Struggles to Contain Outbreak Kaiser Health News