MILWAUKEE - Consumers are being warned about a batch of meat made by Topps Meat Inc. that may be contaminated with E.coli bacteria. The recall is for 21.7 million pounds of meat, making it one of the largest meat recalls in U.S. history. Consumers in Milwaukee are concerned. Wal-Mart is the only store in Wisconsin to sell the recalled beef. "I try to stay away from beef," said shopper Samir Rana. "I figure if it's going to happen with one manufacturer, it might happen with the next," said JoEllen Bilgo. Twenty-five people nationwide have gotten sick from eating the meat. No one in Wisconsin has gotten E.coli, but Wal-Mart stores are clearing their shelves of the potentially harmful meat. Recalls like this steer some away from frozen meat. "I tend to pick out the fresh foods as opposed to the packaged foods," Bilgo said. Wal-Mart says stores have been instructed to pull all recalled meat. Checkout counters are also supposed to automatically reject a purchase of recalled meat.