How does E. coli O157 infect food supplies?
Fecal contamination from the intestines of cattle and sheep during slaughter is one of the most prevalent pathways for infection. In 1993, 500 people became ill and three children died in the State of Washington after eating undercooked hamburgers infected with E. coli O157. Similar outbreaks have been reported in Japan and the United Kingdom. What is cross contamination? A carcass that is infected with E. coli from its own intestines is said to be “contaminated.” However, a carcass that is not infected with E. coli from its own intestines may accidentally contact a contaminated carcass or come in contact with a contaminated surface. When this happens, the carcass becomes “cross contaminated.” • The Protective Properties of Copper and Brass Surfaces in Food Preparation What is the potential role of food preparation surfaces in reducing the risk of E. coli O157 infections? Researchers have found that some food preparation surfaces, such as copper and brass, have a bactericidal effect on
