LONDON (MarketWatch) -- Foster Farms has begun recalling a range of chicken products that may be contaminated with an antibiotic-resistant strain of salmonella, the privately held California poultry company and the U.S. Department of Agriculture said late Thursday. More than 150 products with "use or freeze by" dates from March 21, 2014 to March 29, 2014 are affected. They were sold in nine western states: California, Hawaii, Washington, Arizona, Nevada, Idaho, Utah, Oregon and Alaska. The USDA requested the recall after its inspection service found a link between Foster Farms' boneless, skinless chicken breasts and a case of illness from Salmonella Heidelberg, part of an ongoing outbreak that has lasted for more than a year.