A type of salmonella found in eggs is turning up more often in chicken meat and needs to be reduced, according to the Agriculture Department. From 2000 through 2005, there was a fourfold increase in positive test results for salmonella enteritidis on chicken carcasses.

Salmonella sickens at least 40,000 people and kills about 600 every year in the United States. The number of states with positive tests for salmonella has risen from 14 to 24.

A recent CDC study on food poisoning from salmonella noted that the risk of illness from salmonella enteritidis increased the less people ate at home.