An employee of Czech center of national reference laboratories prepares samples of vegetables for molecular...
An employee of Czech center of national reference laboratories prepares samples of vegetables for molecular testing on EHEC bacteria (bacterium Escherichia coli.) in Brno June 1, 2011. Samples of vegetables imported from various countries are tested for E.Coli at the laboratory. REUTERS/David W Cerny (CZECH REPUBLIC - Tags: AGRICULTURE HEALTH SCI TECH FOOD)