Over the last 30 days, 151 flocks have been confirmed to have avian flu, affecting more than 23 million birds, according to the Animal Planet Health Inspection Service part of the USDA. Dr. Paul Offit, of the FDA Vaccine Advisory Committee, says people could also become sick.

The average price for a dozen eggs skyrocketed in January, and it doesn't look like the rise in egg prices will slow any time soon.

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.