<p>A customer buys vegetables and fruits at a street side market in Moscow, Russia, on Tuesday, May 31, 2011. A massive and unprecedented outbreak of bacterial infections linked to contaminated vegetables claimed two more lives in Europe on Tuesday. Russia's chief sanitary agency on Monday banned the imports of cucumbers, tomatoes and fresh salad from Spain and Germany pending further notice.</p>
June 1, 2011
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Severity of Europe E. coli outbreak stuns experts
Scientists remain unsure what produce, and what country, is responsible
BERLIN - The foodborne bacterial outbreak that has hit Germany and other European nations is unlike anything Western experts have seen: 16 dead and more than 1,000 sick, including nearly 400 suffering severe and potentially fatal symptoms. But several days into the health threat, scientists remain unsure what produce - and what country - is responsible.