LANSING, Mich. — The Michigan Department of Agriculture was instrumental in the recall of dog food sold online and in veterinary offices.

Several dry pet food products produced by Natura Pet Products have been recalled for possible salmonella contamination, but no pet illnesses have been reported.

The Michigan Department of Agriculture came across the problem during a routine test of a single sample of product from a retail outlet, said a release from the U.S. Food and Drug Administration.

Not only can pets become sick from salmonella in their food, but people handling the dry pet food can pick up the organism unless they wash their hands thoroughly after touching the food.

Brands of dry food affected by the recall include California Natural dog food, Evo cat food, Healthwise dog food, and Innova cat food. (See list.)

All the products were made at one Natura production facility and all were produced during a two-week period in December 2012. The expiration dates range from 12/17/13 through 1/4/2014 and were distributed between December 18, 2012, through March 15, 2013.