A peanut butter maker that sells bulk supplies to institutions issued a nationwide recall as officials on Wednesday reported two more deaths associated with a salmonella outbreak. Its client Kellogg Co. later asked stores to stop selling a variety of peanut butter crackers.

Lynchburg-based Peanut Corp. of America issued the recall late Tuesday for 21 lots of peanut butter made since July 1 at its plant in Blakely, Ga., because of possible salmonella contamination. The company supplies peanut paste to Kellogg, which on Wednesday asked stores nationwide to pull peanut butter crackers sold under the Austin and Keebler brands.

Kellogg, based in Battle Creek, Mich., said it hasn't found problems or received complaints about those products.

"We are taking these voluntary actions out of an abundance of caution," Kellogg CEO David Mackay said in a release.

The national salmonella outbreak has sickened more than 430 people in 43 states. Health officials in Minnesota and Idaho reported Wednesday that one death in each state had been linked to the outbreak. Another death in Minnesota and two in Virginia were confirmed Tuesday.

All five were adults who had salmonella when they died, though their causes of death haven't been determined. The U.S. Centers for Disease Control and Prevention said the salmonella outbreak may have contributed.