Wholesale prices for eggs have seen a significant increase, with a dozen large eggs reaching $5.57 in the Midwest and $8.85 in California, a 150% increase from last year. This surge is primarily due to bird flu outbreaks and restrictions on poultry farming, leading to a decrease in the U.S. laying hen flock and egg production. As a result, retailers may increase prices in the new year. The situation is further complicated by potential tariffs from President-elect Donald Trump, which could impact consumer prices for a wide range of goods. The USDA is researching vaccines to protect poultry and cows from bird flu.