Cherry tomatoes grow in a greenhouse at the farm of Gebrueder Meier in Hinwil east of Zurich June 10, 2011. New data shows that bean sprouts are the most likely source of the outbreak of E.coli which has killed 30 people so far, all but one of them in Germany, the country's health authorities said on Friday. REUTERS/Arnd Wiegmann(SWITZERLAND - Tags: AGRICULTURE HEALTH)