A California food company is recalling 153,630 pounds of frozen ground beef after an E. coli outbreak shut down a Boy Scout camp in Virginia last week and sickened at least 22 people, health officials said Thursday. The meat from Azusa, Calif.-based S&S Foods LLC was intended for institutional use and food service firms, which normally supply to restaurants, and wasn't sold at retail. It was shipped to distribution centers in Milwaukee and Allentown, Pa., said the U.S. Department of Agriculture. The link to beef was found through a probe by the USDA's Food Safety and Inspection Service and the Virginia Department of Health. A spokeswoman said the department would follow up with S&S about the source of the beef and safety measures.