BOSTON - South Street Diner is an institution in the city. They see Bostonians coming at all hours of the night. The line out the door comes for the breakfast, particularly the eggs. Only these days,

The price of eggs in Wisconsin has reached new heights, with producers and consumers both feeling the effects of a significant shortage. Avian influenza, or bird flu outbreaks have led to a reduction in the number of chickens available for egg production,

Shares of Cal-Maine Foods were trading higher after the egg producer beat quarterly earnings estimates thanks to strong demand and higher prices. Cal-Maine stock gained 4.7% to $108.50 in premarket trading Wednesday.

Some grocery store shelves have been without eggs in recent weeks. What is causing the shortage, and when will it ease?

You may have noticed that the cost of eggs is up again and that there are not many options in the grocery store.

Bird flu is affecting egg production in Pennsylvania and several other states, causing prices to rise. The big picture: The first bird flu-related human death was confirmed this week in Louisiana. At least 66 human cases have been confirmed in the U.