On January 6, 2010, the CDC released information on the 21 persons infected with the outbreak strain of E. coli O157:H7. The number of ill persons who were identified in the following 16 states: CA (1), CO (1), FL (1), HI (1), IA (1), IN (1), KS (1), MI (1), MN (3), NV (1), OH (2), OK (1), SD (2), TN (1), UT (2), and WA (1).
Although most E. coli outbreaks in meat are lined to ground beef, this recall was for "non-intact steaks", meaning meats that were blade tenderized before further processing. This has long been seen as a potential safety problem, as tenderizing blades can drive E. coli bacteria which might be on the outside of the steak into the meat.