A big recall is under way across the country for nonfat dry milk, cocoa and other products linked to a possible salmonella contamination at a Minnesota processing plant.

The Food and Drug Administration says Plainview Milk Products Cooperative is recalling instant nonfat dried milk, whey protein, fruit stabilizers and food thickening agents. The suspect products were made over the past two years.

Salmonella can cause serious infections, especially in children, the elderly and those with weakened immune systems.

The FDA says none of Plainview's products were sold directly to the public, but to other distributors.