 Interviews with patients have so far found that people in the outbreak were more likely to report eating deli-sliced turkey and liverwurst, though the CDC says that investigators have yet to figure out which exact deli meat is to blame for the infection. CBS News reporter Alexander Tin, but so far we've learned that pre-packaged deli meat is not the culprit here. If you plan to visit Philadelphia this summer, maybe bring your own ice cream. A new study has found the average scoop in Philadelphia.