Asda and Tesco face legal action over E. coli outbreak - BBC.com
- Asda and Tesco face legal action over E. coli outbreak BBC.com
- Tesco and Asda sued by customers over E coli sandwich infections The Guardian
- How does lettuce become contaminated with E.coli? Evening Standard
- One person in England dies amid ongoing E.coli outbreak Sky News
- Legal action started against Tesco and Asda over E. coli outbreak Yahoo News UK