(Gray News) - The FDA issued its highest-risk warning for a California-based company amid concerns over a multistate cheese E. The Class I classification applied to all affected Graziers raw milk cheese products manufactured by California-based Sierra Nevada Cheese Company, including Monterey Jack, jalapeo jack, medium cheddar and sharp cheddar varieties, according to a press release.

The affected products were distributed in Arizona, California, Colorado, Florida, Georgia, Illinois, Indiana, Maryland, New Jersey, Oregon, Texas, Washington and Wisconsin.

Investigators said 13 people in nine states became sick.