Survey shows two-thirds of store-bought chickens in the U.S. stores carry salmonella.

National Report

-- A new study by

Consumer Reports Magazine

reveals that most chickens sold in U.S. stores carry salmonella or campylobacter.

Testing 382 chickens bought from over 100 food stores across 22 states, the study reports that only 34 percent of those chickens were free of both bacterial causes of foodborne disease. The most contaminated chickens were from the brands Tyson and Foster Farms. Perdue had the cleanest name-brand chickens.

The survey report will appear in the January 2010 issue of

Consumer Reports Magazine

.