Chickens can pass the bacteria to eggs because the eggs leave hens through the same passageway as feces, according to the U.S. Department of Agriculture's Food Safety and Inspection Service.

CNN: STORY HIGHLIGHTS

Chickens everywhere can rest happy in the knowledge that their wings are more than just beer snacks.

ECONOMIST: Birds that don't fly may be using their wings to run uphill

We can admire eggmen like Bell, while still being connoisseurs of chickens, or, for that matter, think like doves while admiring hawks.

NEWYORKER: Slaughterhouse

The couple, who moved into a horsebox on the smallholding in 2009, have greenhouses, chickens, sheep and pigs and aim to live as self-sufficiently as they can.

BBC: Willand smallholders win right to build home

The mushroom enterprise is also relatively new, launched in 2008 when the monks abandoned their egg business after an animal-rights organisation said they were not housing their chickens humanely. (The monks contended that they were.) Now the mushrooms can also be bought at local supermarkets, and are popular fare at several high-class Charleston restaurants.

ECONOMIST: A beautiful and profitable idea