CASPER, Wyo. — The Centers for Disease Control and Prevention is recommending people avoid raw chocolate chip cookie dough and S’more bar dough from Papa Murphy’s Take ‘N’ Bake Pizza stores after reports of multiple illnesses caused by salmonella.

In its alert issued on Tuesday, the CDC says 18 people have reported illness in six states, with two reported hospitalizations.

The CDC says that Papa Murphy’s has temporarily stopped selling the raw dough varieties since reports of illnesses surfaced last week. Investigators are working to identify the contaminated ingredient in the raw cookie dough.

The CDC says to toss out any unused dough that may still be in refrigerators, and to wash items and surfaces that may have come into contact with the dough.

The CDC says the product is not meant to be eaten raw, and ingredients such as unpasteurized eggs or raw flour can contain salmonella or E. Coli.

Products sold as edible cookie dough contain ingredients that have been heat-treated and pasteurized.

According to the CDC map, there have been no reported illnesses from the products in Wyoming, but the neighboring states of Utah and Idaho do have reported cases. Other states with cases are Missouri, Washington, Oregon and California.

Salmonella symptoms include severe or bloody diarrhea, fevers of more than 102 degrees and vomiting that makes it difficult or impossible to keep in liquids. Symptoms start anywhere from six hours to six days after contact and can last from four to seven days. Young children, people over age 65 and those with compromised immune systems may require hospitalization, the CDC said.