If they're serving smoked salmon at the New Year's Eve party, it might pay to find out where it's from. Walmart's Sam's Club is recalling packages sold in 42 states because of concerns about listeria, reports the LA Times. The product in question is from Multiexport Foods of Miami and Tampa Bay Fisheries, specifically the 12-ounce Twin Pack and 1.25-pound Paramount Reserve. Info on UPC codes and affected states is here. No illnesses have been linked to the fish, but a routine lab test turned up traces of the potentially deadly bacteria.