Filed under: Science, Poultry, America, Health & Medical

In a recent study, Consumer Reports concluded that 83% of all the chickens sold in the US are likely to contain foodborne illness-causing bacteria, such as campylobacter and salmonella. Known for its reliable research techniques and consumer-minded approach to issues, Consumer reports has come under criticism from the USDA, which "called the report 'junk science.'"

The CR study involved running tests on 525 supermarket chickens (from leading brands) before drawing their conclusions. Despite the fact that different brands were tested, the USDA says that the sample size was too small to conclude anything about all the chickens in the country - especially considering that there are something like 9 billion chickens killed for food in the US every year. A spokesperson for the U.S. Agriculture Department's Food Safety and Inspection Service said that the methodology was not there, or at least was not sufficiently explained, to justify the conclusions. For example, the study found that 15% of chickens carried salmonella (a number actually in line with USDA data), but failed to identify the strain(s) present, not even mentioning that not every strain makes people sick.

The USDA will conduct its own study of the matter beginning in January.