A new CDC study suggests that cases of H5N1 bird flu in humans working with dairy cows may be ... [+] significantly under-reported. A new CDC report has revealed that 7% of dairy workers tested had evidence of prior infection with the H5N1 avian influenza ...

After a new study showed that bird flu has spread to dairy farm workers more often than previously known, the US Centers for Disease Control and Prevention is expanding its recommendations for testing and treatment of workers on farms where animals have tested positive.

It's officially called Highly Pathogenic Avian Influenza, better known as bird flu, and poultry farms in the Bay Area and across the nation are in lockdown because of it.

The state’s veterinarian said she’s “knocking on wood as we celebrate,” and that Colorado's dairy industry isn't out of the woods yet.

The Centers for Disease Control and Prevention (CDC) is updating its recommendations for testing, treatment and protection for workers who may be exposed to animals infected with bird flu. The update comes after the agency found evidence of dairy workers with positive antibodies,

Following a CDC study showing bird flu exposure among dairy workers, health officials recommend increased testing and preventative measures for farmworkers, even if they show no symptoms, to prevent virus spread and mutation.