For the Record - Sept. 5, 2008

E. coli: An article in Monday’s Health section about irradiation of spinach and lettuce said it takes hundreds of millions of E. coli bacteria to make someone sick. In fact, the number for E coli O157:H7 -- a strain associated with serious cases of food-borne illness -- is far lower than that. The number is estimated to be as few as 10 to several hundred cells.