The FDA warned people not to eat two brands of pistachios because they may be contaminated with salmonella.

The agency said in a news release that California Prime Produce and Orange County Orchards pistachios are both packaged by Orca Distribution West.

The agency said people should throw away any recalled products and avoid contact with skin.

Salmonella can cause serious and sometimes fatal infections in young children, frail or elderly people, the FDA said.

The recalled snacks are associated with an earlier recall by Setton Pistachio of Terra Bella Inc. Orca received and repacked some pistachios from Setton.

The newly recalled nuts were sold at stores, airports and hotels nationwide. They come in 6-ounce bags with zippers. They UPC number is 8 10826 01116 2, and they have sell-by dates of 7/30/09 and 8/30/09.

Salmonella can cause fever, diarrhea, nausea, vomiting and abdominal pain. If it gets into the blood, it can cause arthritis and a heart infection.

Orca has not made a public announcement regarding these products, the FDA said. FDA has alerted consumers so that they can take appropriate action.