LIN-MAR PARTNERS, INC of Austin, Texas is recalling two varieties of Longhorn Bars: Roasted Peanut with Chocolate Energy Bars and Peanut Butter Trail Mix Protein Bars because they have the potential to be contaminated with Salmonella, an organism which can cause serious and sometimes fatal infections in young children, frail or elderly people, and others with weakened immune systems. Healthy persons infected with Salmonella often experience fever, diarrhea (which may be bloody), nausea, vomiting and abdominal pain.