As bird flu outbreak spreads among cows, scientists are hunting for answers [Video]

At first glance, it looks like an unassuming farm. Cows are scattered across fenced-in fields. A milking barn sits in the distance with a tractor parked alongside. But the people who work there are not farmers, and other buildings look more like what you’d find at a modern university than in a cow pasture.Welcome to the National Animal Disease Center, a government research facility in Iowa where 43 scientists work with pigs, cows and other animals, pushing to solve the bird flu outbreak currently spreading through U.S. animals — and develop ways to stop it.Related video above: Doctor on why Moderna is developing a bird flu vaccineParticularly important is the testing of a cow vaccine designed to stop the continued spread of the virus — thereby, hopefully, reducing the risk that it will someday become a widespread disease in people.The U.S. Department of Agriculture facility opened in 1961 in Ames, …