Peter Walker, Abby D’Arcy HughesÂ and Adam Gabbatt
June 6, 2011
An investigation into a deadly outbreak of E coli has been thrown into chaos after laboratory tests showed that bean sprouts grown near Hamburg, which had been identified as the likely source, are possibly not to blame.
German officials had said they were confident that sprouts from the organic GĂ¤rtenhof farm in Lower Saxony were behind the spread of a particularly virulent strain of the bacterium. There were “strong and clear indications” that the farm was involved, the federal health minister, Daniel Bahr, said.
However, Lower Saxony’s agriculture ministry said 23 of 40 samples from the farm had now tested negative for the E coli, with 17 more tests still being done.