WRIC Atlanta News reports that federal health officials say the number of lab-confirmed cases of peanut butter-associated salmonella has climbed to 370 — up from the 329 reported last week.

The Centers for Disease Control and Prevention said yesterday that North Dakota had now joined the count, raising the number of states with confirmed cases to 42.

About two dozen cases have been reported in Virginia.

ConAgra Foods recalled Peter Pan and Great Value peanut butter made at its Sylvester, Georgia, plant after federal health officials linked the product to an outbreak of an unusual type of salmonella that has sickened people since August.