The outbreak includes seven confirmed and three probable cases reported in Idaho and in Washington. Half of those affected have been hospitalised, but none have developed potentially serious haemolytic uremic syndrome (HUS) and there are no reported deaths.
Initial epidemiological investigations have indicated a link with consumption of raw clover sprouts, typically in sandwiches purchased from food outlets. Traceback investigations suggest that the likely source of the outbreak is contaminated clover sprouts supplied by Evergreen Fresh Sprouts, LLC of Idaho.
The outbreak investigation is on going and further information can be found on the CDC web site here.