Egg rationing is now the best option to make the product available for H-E-B, one of the biggest supermarket chains in Texas.

Customers can only purchase three egg cartons to alleviate the supply shortage caused by the dreaded avian flu on local farms, which poses a danger of affecting its consumer prices as well, according to The Washington Times.

H-E-B has about 350 supermarket branches all over Texas, and ominous signs of its limited egg purchase have started to come up at store windows in recent days.

"Eggs [are] not for commercial sale," read the H-E-B store signs. "The purchase of eggs is limited to 3 cartons of eggs per customer."

The national egg shortage had been brought upon by the unresolved avian flu infection that broke out in the states of the Midwest in December 2014, according to the U.S. Department of Agriculture. The avian flu has since led to the culling of some 47 million chickens as of June 4.

Warehouse prices of eggs in the previous month have doubled, San Antonio Express News reported. The price of a carton of large eggs in the south central region, which includes Texas, ranged from $2.44 to $2.52 on Monday, according to the USDA. The price ranged from $1.13 to $1.21 in May.