Seventeen people in five states have been sickened by E. coli after eating clover sprouts, according to the Centers for Disease Control and Prevention.
That's up from the 10 cases reported by the CDC in late May.
No deaths have been linked to the E. coli outbreak, the CDC says, but nearly half of those sickened were hospitalized. Three cases were identified in Idaho, one in Michigan, two in Montana, one in Utah and 10 in Washington state.
Evergreen owner David Scharf told CNN affiliate KREM-TV that U.S. Food and Drug Administration tests from his farm came back negative for the strain of E. coli involved in the outbreak.