The price of eggs at U.S. grocery stores has climbed to a record high, nearly doubling from a year ago, as outbreaks of bird flu have led to shortages by wiping out millions of hens. Eggs are missing from grocery shelves nationwide,

A commercial turkey flock of about 30,000 birds in Sac County was recently infected by a very contagious and deadly avian flu, according to state ag officials.

For Brian Kreher, a fourth-generation farmer in the small town of Clarence, New York, the latest outbreak of bird flu has meant many sleepless nights. He considers his 18-acre farm one of the lucky ones.