WORCESTER, Oct. 16 -- A sample in Maryland of a New York dairy's raw cheddar isolated two strains of Shiga toxin-producing E. coli, and nobody has reported getting sick. That gap, between a positive sample and a patient, is where the dairy chose on Thursday to pull a lot of its cheese from grocery shelves in two states.

Family Farmstead Dairy of Worcester is recalling one lot of Raw Mild Cheddar Cheese, which went to grocers in New York and New Jersey, according to a company announcement the Food and Drug Administration posted on October 15. The lot code and best-by date are both 7/22/27, and the cheese is sold in clear plastic with green, red and white labeling. "No other Family Farmstead Dairy products are included in this recall," the...