CDC, multiple states, and the U.S. Food and Drug Administration (FDA) are investigating a multistate outbreak of Shiga toxin-producing Escherichia coliO157:H7 (STEC O157:H7) infections.

Sixteen people infected with the outbreak strains of STEC O157:H7 have been reported from nine states. Washington, Oregon, California, Arizona, Wisconsin, Missouri, Virginia, Maryland and New Jersey

Eight ill people have…