Bird flu is sweeping through egg-laying chickens in the United States at an unprecedented rate. So far in 2025, 30 million layers, as they’re known, have been culled, close to the 38 million killed throughout all of last year: Nearly 10 percent of the country’s annual number of egg-layers have been wiped out.

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.