The bird flu outbreak sweeping the Midwest is impacting at grocery stores.

Egg prices are on the rise and showing no signs of leveling out. The nationwide egg supply has been hit hard by the epidemic.

Poultry experts are calling it the biggest disruption ever to hit the U.S. egg market.

According to the USDA, to date, more than 44 million birds have been affected. Ten percent of the nation's egg-laying chickens have been wiped out by the spread of avian flu across the region.

The bottom line: You're going to be paying a lot more for eggs.

Prices of wholesale consumer-grade eggs sold in grocery stores have more than doubled in the past month to reach an all-time high, according to commodity market analysis firm Urner Barry.

Liquid egg costs are up 200 percent in the last month.

Southern restaurant chain Whataburger announced this week it would trim breakfast hours due to the shortage. Dunkin' Donuts, IHOP and Taco Bell all tell NBC News they are watching this flu outbreak closely.

Experts say the situation could get worse.

Federal officials are planning an aggressive educational campaign in an effort to contain the virus to help improve biosecurity around infected barns after tests have shown the disease is spreading from farm to farm.