Ground beef is often a culprit and the number of recalls of that product are too numerous to keep track of. http://www.maryland-law.com/blog/e-coli-contamination-prompts-maryland-ground-beef-recall.cfm
The bottom-line is that learning about E.-Coli or Salmonella after the fact means that someone or many someones will become ill or die beforehand.
The best way to stay on top of food-borne illness out breaks is to turn to this website and several others sponsored by the United States Department of Agriculture and the Food and Drug Administration.
Our comprehensive discussion is located at: http://www.maryland-law.com/library/food-poisoning-where-to-get-the-latest-information.cfm
The USDA link is: http://www.fsis.usda.gov/Food_Safety_Education/usda_meat_&_poultry_hotline/index.asp
The FDA link is: http://www.foodsafety.gov/
We will keep reporting and please be careful.