A lot goes into the production of eggs — and with the Trump administration’s tariff policies potentially affecting costs for chicken feed and equipment, bird flu isn’t the only reason U.S. consumers may continue to pay high prices for eggs at the grocery store.

The Justice Department said Sunday it is investigating the skyrocketing cost of eggs, which producers have blamed on the latest outbreak of avian flu.

Egg prices again reached a record high in February, as the bird flu continues to run rampant and Easter and Passover approach. The latest monthly Consumer Price Index showed a dozen Grade A eggs cost an average of $5.