ConAgra Foods Inc. (NYSE:CAG) is advising consumers to destroy any Peter Pan or Great Value peanut butter with a product code 2111 amid concerns about possible salmonella contamination.

There have been 300 cases in 39 states since August linked to tainted peanut butter, according to the , Associated Press, adding that it's the first time that peanut butter has been linked to this illness. About 20 percent of the people with the infection have been hospitalized and none thank goodness has died.

ConAgra, which hasn't found any problems with its products, is working with government officials and will take any additional measures that are needed, the wire service said. The affected peanut butter came from a plant in Sylvester, Georgia, according to the FDA.

Consumers can call a 24-hour hotline at 866-344-6970 with any questions or concerns.

What should investors do? Absolutely nothing.

Food companies, particularly large ones like ConAgra, are well-prepared to face these sorts of situations. The Omaha-based company isn't panicking and neither should shareholders.