Escherichia coli is a gram-negative, facultative anaerobic, rod-shaped, coliform bacterium of the genus Escherichia that is commonly found in the lower intestine of warm-blooded organisms. From Wikipedia
Coles, IGA, Woolworths, and Aldi have issued recalls for pre-packaged salad products as investigations into shiga-toxin-producing E. coli continue, with no illnesses reported so far.