US (CA): Farm finds e-coli even after washing
Most worrying are the lesser known strains of e-coli, collectively called the big six. Very few companies or health agencies are currently carrying out screening for these strains, but Earthbound Farms do - both before and after washing. They have found several times that some strains are surviving the wash process. Thankfully the testing they carry out means that the affected produce ends up in landfill sites before it has the opportunity to enter the food chain. The fact that such testing is rare and that there is, as yet, no guaranteed form of prevention is indicative of the urgency behind the ongoing research into this.
Source: www.latimes.com