BELLVILLE — Customers were being warned by the state health department on Wednesday not to consume any ready-to-eat or smoked meat products purchased from the Bellville Meat Market on or after Oct. 6. The warning comes after a product tested positive for listeria monocytogenes. The bacterium can cause listeriosis, with symptoms including fever, muscle aches and sometimes diarrhea or nausea. The incubation period is usually from 12 hours to three weeks but can be longer.