An outbreak of E. coli O157:H7 was linked to eating fresh strawberries produced by Jaquith Strawberry Farm, in Oregon. The farm sold berries to buyers who in turn distributed them to roadside stands and farmers' markets in Multnomah, Washington, Clackamas, Yamhill, and Clatsop counties. The berries were sold in unmarked containers and were last distributed on August 1. Confirmed cases included residents of Washington, Clatsop, and Multnomah counties. Strawberries had not previously been implicated in an E. coli O157:H7 outbreak in the U.S. Ten percent of the environmental samples collected at the Jaquith Strawberry Farm tested positive for E. coli O157:H7. Those samples included deer feces; deer were suspected to be the source of the contamination. The outbreak strain was found in samples from fields in three separate locations.