Some fresh produce, particularly imported varieties, may be hydrated in the field or washed during processing with water contaminated with salmonella.

CNN: Salmonella infection

Thousands of plants, including many varieties which are imported from Europe during winter months, will be grown on a 23-acre site in Billingham.

BBC: NEWS | UK | England | Tees | Factory fuels year-round tomatoes

Caves and cellars are filled with wheels of cheese that range from stinky to imported and aged, plus varieties made in the hotels themselves.

FORBES: Cheese Caves Are The Newest Hot Hotel Amenity

Several varieties of carp imported from Asia have migrated steadily northward in the Mississippi River and its tributaries since escaping from Southern fish farms and sewage treatment ponds in the 1970s.

WSJ: Asian carp spawning areas wider than expected

Credit is expensive, and an overvalued currency makes imported food cheaper than home-grown varieties.

ECONOMIST: Venezuela