Hennepin County health officials are investigating why a number of people apparently got sick after eating this past weekend at the Chuck E. Cheese’s outlet in Maple Grove west of Minneapolis. Health Department spokesman Bill Billknap said that norovirus was suspected after public health officials contacted others who ate there by using cash register receipts to locate them. Several of those people, both children and adults, reported gastrointestinal illness symptoms, he said, although none required hospitalization. Preliminary indications were that someone, perhaps a customer, came into the business already having norovirus and spread it to others. Health Department investigators reportedly inspected the restaurant’s food-preparation and food-handling areas and checked with employees to see if any of them had been sick with norovirus symptoms. The restaurant was not closed. Billknap said that anyone who was at the Chuck E. Cheese’s outlet in Maple Grove this past weekend and is sick should call the Hennepin County Health Department at (612) 543-5230.